Abstract:Objective To explore the situation of droplet size in mosquito sprayers used during dengue fever outbreaks in Guangzhou,so as to provide scientific recommendations for equipment selection in outbreak management.Methods A questionnaire survey was conducted among 39 pest control operation(PCO)institutions or street disinfection stations across the city,and the droplet size of the equipment was tested using the Spraylink-E high-speed spray particle analyzer.Chi-square tests and t-tests were used to compare qualitative and quantitative data,respectively.Results A total of 90 mosquito sprayers from 39 institutions were surveyed.The pass rate of ultra-low volume sprayers was 45.26％,while that of regular volume sprayers was 100％.At distances of 0.25 m and 0.5 m,there were statistically significant differences in D10 and D50 values between water and insecticide medium for ultra-low volume sprayers(all P＜0.05).Paired sample t-test results showed that when testing with water quality,there were statistically significant differences between the labeled and actual values for both ultra-low volume and regular volume sprayers(both P＜0.05).For UVL1 and UVL2 under different usage years,the differences were also statistically significant(both P＜0.001).Conclusion Currently,all ultra-low volume sprayers in use have situations where droplet sizes that do not meet the corresponding requirements.In daily mosquito control and emergency response,proper equipment selection and maintenance should be ensured.

Abstract:Objective To explore the application of the moving epidemic method,a time series-based graded early warning model for infectious disease epidemic intensity in the ecological monitoring of Aedes albopictus,so as to provide scientific guidance for its control.Methods The density data of Ae.albopictus collected using CO2 mosquito lure lamp method in Xicheng District,Beijing from 2018 to 2023,were analyzed and classified using the moving epidemic method.Each threshold was calculated,and thus the density intensity of Ae.albopictus in different seasons in 2024 were analyzed.Results When the density of Ae.albopictus came up to 0.06 mosquitoes/(lamp·hour),the activity intensity reached the initial threshold;at 0.43 mosquitoes/(lamp·hour),it reached the medium threshold;at 0.81 mosquitoes/(lamp·hour),it reached the high threshold;and at 0.98 mosquitoes/(lamp·hour),it reached the ultra-high threshold.Conclusion By formulating corresponding control strategies based on these threshold values and implementing interventions for the control work in 2024,the density of Ae.albopictus in that year can be effectively reduced.

Abstract:Objective To investigate the ecological characteristics of fly and the insecticide resistance of Musca domestica in Huai'an,so as to provide scientific evidence for the control of fly and the prevention of related infectious diseases.Methods Ecological surveillance of fly was conducted using the cage trapping method,and the insecticide resistance of M.domestica was measured using topical application method.Data were organized and analyzed using Excel 2019 and SPSS 20.0 software.The Kruskal-Wallis H test was employed to analyze fly densities in different habitats.Welch's analysis was used to compare fly densities in months.Spearman correlation analysis was applied to assess the correlation between M.domestica density and total fly density.Probit regression analysis was utilized to calculate LD50,95％confidence intervals,and resistance ratio of M.domestica.Results In 2023,the total fly density in Huai'an was 4.69 flies per cage.M.domestica was the dominant species,accounting for 45.24％.The highest fly density was observed in farmers' markets,at 7.13 flies per cage,with no significant differences in fly density among different habitats(H=4.382,P=0.223).Fly density exhibited a unimodal seasonal fluctuation pattern,peaking at 10.98 flies per cage in July.Significant variations in total fly density were observed in different months(F=13.641,P＜0.01).M.domestica density and total fly density showed similar trends and were significantly correlated(r=0.936,P＜0.01).The resistance ratios of M.domestica to dichlorvos,beta-cypermethrin,deltamethrin and dinotefuran were 3.25,378.71,46.02,and 293.58,respectively.Conclusion Huai'an exhibited a high diversity of fly species,with the peak density period in July.The farmers' market served as a key place for fly management.The dominant specie M.domestic had developed resistance to beta-cypermethrin,deltamethrin,and dinotefuran.Therefore,the single application of these insecticides should be minimized,and combinations of low-resistance insecticides should be prioritized.

Abstract:Objective To understand the distribution of the host animals(rodents)and transmission vectors of scrub typhus in Jingzhou,so as to provide evidence for the prevention and control of scrub typhus.Methods From 2022 to 2024,the night trapping method was used to capture rodents in 8 counties(cities,districts)of Jingzhou,parasitic chigger mites on the body surface were collected and identified,the infestation rate and index of chigger mites were calculated.Samples of liver,spleen and kidney from some rodents were taken for the detection of Orientia tsutsugamushi.Results A total of 516 rodents belonging to 4 genera and 7 species were captured,with a capture rate of 2.16％.Apodemus agrarius was the dominant species.All rodents were examined for ectoparasitic chigger mites,and a total of 91 rodents carrying chigger mites,with an overall infestation rate of 17.64％and a mite index of 2.98.Higher indices of chigger mites were observed in Rattus losea(4.60),Niviventer confucianus(4.43),and A.agrarius(4.20).The infestation rate in field-captured rodents was significantly higher than that in residential areas(x2=20.033,P＜0.01).A total of 458 chigger mites were identified,comprising 6 species from 4 genera,with the dominant species being Gahrliepia octosetosa(73.70％).O.tsutsugamushi testing was performed on 204 rodents,with no positive detections.Conclusion There is a risk of scrub typhus transmission in Jingzhou.It is recommended to strengthen the monitoring of host animals and vector chigger mites,and focus on health education and rodent control in rural areas to reduce the risk of scrub typhus transmission.

Abstract:Globally,the pest control is of great significance for improving the urban and rural living environment,enhancing public health,and especially reducing the spread of vector-borne diseases and protecting people's health.This article analyzes the development of the pest control industry at home and abroad,compares their market size,institutional construction,and development differences,and puts forward targeted suggestions for the development of the domestic pest control industry to provide a reference for the development of public health pest control in China.

Abstract:Objective To investigate the tick species distribution,Dabie bandavirus infection rate,and healthcare workers' knowledge of severe fever with thrombocytopenia syndrome(SFTS)in Daxing District,Beijing,so as to provide evidence for the prevention and control of tick-borne diseases such as SFTS.Methods Questing ticks were surveyed using the flagging method in residential green belts,green spaces(woodlands),and parks from April to October 2024.On-host ticks were collected from veterinary hospitals.Tick species were identified morphologically,and Dabie bandavirus was detected using molecular methods.Additionally,a questionnaire survey was conducted to assess healthcare workers' knowledge of SFTS,and the comparison of awareness rates was performed using the Chi-square test.Results A total of 6 tick species belonging to 4 genera and 1 family were identified in Daxing District,with Haemaphysalis longicornis being the dominant species(102/166,61.45％).The average density of questing ticks was 0.06 ticks/(flag·100 m)and no Dabie bandavirus was detected.Among healthcare workers,the overall awareness rate of SFTS was 78.49％,with significantly higher awareness observed in tertiary hospitals compared to community hospitals(x2=6.153,P=0.013).Identified knowledge deficiencies included:whether SFTS was classified as a notifiable infectious disease,appropriate clinical management following tick bites,availability of specific antiviral drugs for SFTS treatment and existence of a preventive vaccine against SFTS.Conclusion There are abundant tick species in Daxing District,with H.longicornis being the dominant tick species.The prevention and control of ticks,SFTS and other tick-borne diseases should be strengthened.

Abstract:Objective To analyze the epidemic characteristics of hemorrhagic fever with renal syndrome(HFRS)and the monitoring situation of host animals(rodents)in Qingzhou from 2015 to 2024,so as to provide a scientific basis for the prevention and control of HFRS in Qingzhou.Methods HFRS case data were collected through the China Information System for Disease Control and Prevention,and analyzed using descriptive epidemiological methods.Host animals were monitored once in the middle of each month from 2015 to 2024,with monitoring sites covering urban residential areas,key industries,rural natural villages and the wild.The night trapping method was used to capture rodent.Data were entered and statistically analyzed using Excel 2016 and SPSS 17.0 software.The Chi-square test was used to compare rates,and Pearson correlation analysis was used to analyze the correlation between incidence and rodent density.Results From 2015 to 2024,a total of 253 HFRS cases were reported in Qingzhou,with an average annual incidence rate of 2.65/105.The incidence rate began to rise in 2015(5.23/105),reached a peak in 2016(5.61/105),and then decreased year by year,reaching the lowest value in 2023(0.62/105).The seasonal distribution showed a bimodal pattern,with the main peak occurring from March to May(accounting for 35.18％of the total cases)and the secondary peak in November(accounting for 10.67％of the total cases).The male-to-female ratio was 2.51:1(181 males and 72 females);the age distribution was mainly middle-aged and elderly,with 70.75％(179/253)being over 40 years old.The occupation distribution was mainly farmers,accounting for 78.26％(198/253).Miaozhi Town,Shaozhuang Town,Wangfu Street and Yunmenshan Street had the highest number of cases,with a total of 122 cases,accounting for 48.22％of the total cases in the city.The overall rodent density was 0.59％in Qingzhou,and there were significant differences in rodent density among different years(x2=78.893,P＜0.001),with the highest density in 2016(2.27％)and the lowest in 2020(0.29％).The incidence rate of HFRS in each year was positively correlated with rodent density(r=0.738,P＜0.001).Conclusion The HFRS epidemic in Qingzhou from 2015 to 2024 showed a trend of rising first and then falling.It is necessary to further improve and strengthen the monitoring of host animals and continue to carry out comprehensive prevention and control measures centered on scientific rodent control.

Abstract:Objective To investigate the species distribution,species composition and blood-sucking rate of hematophagous midges in 4 cities of Jilin Province and Liaoning Province.Methods The hematophagous midges were captured with light traps from cattle pens and sheep pens in Benxi,Fengcheng,Liaoning Province and Shulan,Tonghua,Jilin Province.The blood-sucking rate of midges among different midges species and different places were compared using x2 test.Results From July to August 2024,a total of 57 492 hematophagous midges were collected from 4 cities in Liaoning and Jilin Provinces,and 15 species of Culicoides were identified.There were 9 species distributed in Benxi,8 species in Fengcheng,8 species in Shulan,and 12 species in Tonghua.The total proportion of C.punctatus in two provinces and four cities was the highest(54.20％);the dominant species of the four cities were C.tainanus(91.24％)in Benxi,C.tainanus(66.77％)in Fengcheng,C.punctatus(85.10％)in Shulan,and C.sinanoensis(46.54％)in Tonghua,the composition of main species of hematophagous midges were different in different places.The overall blood-sucking rate of 4 dominant species was 62.38％,of which,C.tainanus had the highest blood-sucking rate(62.59％),and C.sinanoensis had the lowest blood-sucking rate(61.30％).The blood-sucking rate of the main species of midge was different in different places.C.matsuzawai and C.tainanus were recorded for the first time in Jilin Province.Conclusion There were 15 species of hematophagous midges were collected from 4 cities of Liaoning Province and Jilin Province(2 species were recorded for the first time in Jilin Province),the dominant species was C.punctatus,the blood-sucking rate of C.tainanus was higher.At the same time,the distribution of hematophagous midges in the four cities have basically figured out,which provides a reference for the study on the fauna,ecology,control and disease relationship of hematophagous midges in Jilin Province and Liaoning Province.

Abstract:Objective To understand the resistance levels and differences of Aedes albopictus to commonly used insecticides in various regions of Shanghai in 2024,so as to provide a scientific basis for urban vector control.Methods The median lethal concentration(LC50)of common insecticides was determined for Ae.albopictus larvae using the larval immersion method.Results In 2024,the Ae.albopictus population in Shanghai showed moderate to high resistance to pyrethroid insecticides,with resistance ratios to deltamethrin ranged from 17.50 to 87.50,with the highest resistance observed in Pudong New Area.Except for Baoshan District,which showed moderate resistance to propoxur(with resistance ratios of 10.40),other areas exhibited low resistance levels,with resistance ratios ranged from 7.16 to 8.39.Additionally,except for Baoshan District,which remained sensitive to fenthion(with resistance ratios of 1.67),other districts showed low resistance levels,with resistance ratios ranged from 5.00 to 8.33.Conclusion It is advisable to select and use insecticides based on the resistance characteristics of Ae.albopictus in each region of Shanghai,strengthen resistance monitoring,and delay the development of resistance.

Abstract:Chinese Catalog of The Termite(published in 2020)serves as a vital reference for termite taxonomy researchers in China.This article reviews advancements in termite taxonomy since 2020,including termite classification systems,updated taxonomy of Syntermitinae and Cubitermes clade,newly named family,subfamily,genus and species,along with termite synonyms,aiming to offer a valuable reference for future research in termite taxonomy.

Abstract:Objective To understand the resistance level of mosquitoes in national surveillance sites in Licang District of Qingdao,so as to provide evidence for the prevention and control of mosquitoes.Methods The insecticide resistance of adult mosquitoes and larvae were detected by the tube contact method and the immersion method,respectively.Results In 2022,the mortality rates of adult Culex pipiens pallens to beta-cypermethrin,deltamethrin,propoxur and permethrin were 73.33％,69.33％,48.00％and 49.33％,respectively,which exhibited resistance to all of them.Cx.pipiens pallens larvae showed sensitive to beta-cypermethrin and deltamethrin with the resistance ratios of 2.85 and 2.34,respectively.Cx.pipiens pallens larvae developed low resistance to permethrin and propoxur with the resistance ratios of 3.83 and 5.09,respectively.In 2023,Ae.albopictus larvae showed sensitive to beta-cypermethrin with a resistance ratio of 1.57.Ae.albopictus larvae developed low resistance to permethrin,propoxur and deltamethrin with the resistance ratios of 9.13,3.27 and 6.27,respectively.Conclusion Different mosquito species in Licang District exhibit varying degrees of resistance to the same insecticide,and different life stages of the same mosquito species show differences in resistance levels to the same insecticide.Resistance monitoring should be continuously carried out to guide rational insecticide use.

Abstract:Objective To accurately and rapidly identify the intercepted flies from entry ship at Zhongshan Port.Methods Morphology and DNA barcoding techniques used to identify three intercepted flies,one male from a Romanian inbound container,one female from a Macau entry ship,and one male from a Hong Kong entry ship at Zhongshan Port.Results The morphological identification results of the three flies were Phaonia rufiventris,Passeromyia heterochaeta,and Neomyia indica,respectively.Combined with the BOLD database comparison results of DNA barcode sequences,identity of the intercepted flies were confirmed to be 100％in P.rufiventris,99.85％in P.heterochaeta,and 99.85％in N.indica,respectively.Conclusion These three flies were the first intercepted in domestic ports,among them,Phaonia rufiventris being a species not previously recorded in China.The combined use of morphological and DNA barcoding identification methods would enable accurate identification of invasive flies,and provide technical support for port quarantine and inspection.

Abstract:Objective To analyze the trends in the burden of malaria from 1990 to 2023 in 12 to high burden to high impact(HBHI)countries based on the Global Burden of Disease(GBD)database,so as to provide a scientific basis for China's efforts to prevent the re-transmission of imported malaria.Methods Data on the burden of malaria,including the number of cases,deaths,and disability-adjusted life years(DALYs)from 1990 to 2023 in 12 HBHI countries,were collected from the GBD database.Descriptive analysis was conducted,and time trend analysis was performed using Joinpoint software version 5.4.0.0.Results Regarding the number of cases,all countries except India showed an increasing trend.The proportion of malaria cases in HBHI countries relative to the global total ranged between 64.883％and 71.342％.In terms of deaths,India,Mozambique,and Tanzania showed a significant decreasing trend.The proportion of malaria deaths in HBHI countries relative to the global total ranged between 69.057％and 73.776％.For DALYs,India and Tanzania showed a significant decreasing trend.The proportion of malaria DALYs in HBHI countries relative to the global total ranged between 69.698％and 74.494％.Compared with 1990,the age-standardized burden of malaria in HBHI countries overall showed a decreasing trend.Except for Niger,Sudan,and India,the correlation coefficients for the age-standardized burden of malaria in HBHI countries and globally were statistically significant(P＜0.05).Uganda showed a statistically significant increasing trend in the average annual percentage change(AAPC)for age-standardized incidence rate(P＜0.05),while the remaining HBHI countries showed a statistically significant decreasing trend in the AAPC for age-standardized incidence rate(P＜0.05).Except for Ghana,all other HBHI countries showed a statistically significant decreasing trend in the AAPC for age-standardized mortality rate(P＜0.05).All HBHI countries showed a statistically significant decreasing trend in the AAPC for age-standardized DALY rate(P＜0.05).Conclusion The burden of malaria in HBHI countries shows a declining trend,but continued resource investment is still required to further reduce the disease burden.China should strengthen the surveillance of overseas epidemic situations and implement multiple measures to consolidate and maintain the achievements of malaria elimination.

Abstract:Objective To understand the species composition,density,distribution and pathogen carriage of mosquitoes in the China-Russia border ports of Heilongjiang Province during 2023 to 2024,so as to provide reference for the prevention and control of mosquito-borne infectious diseases.Methods From May to October each year of 2023 to 2024,mosquitoes were collected in the operational areas of the ports and forest edges in 14 China-Russia border ports of Heilongjiang Province using light trap method.The samples were tested for Plasmodium,alphavirus and flavivirus by conventional PCR.Results A total of 1 584 light traps were set up in the 14 China-Russia border ports of Heilongjiang Province from 2023 to 2024,capturing 24 658 female mosquitoes,with an average mosquito density of 15.57 mosquitoes per(light·h).Among them,there were 21 363 Aedes vexans(86.64％),followed by Anopheles sinensis(2 620,10.63％).None of the 810 samples tested positive for Plasmodium,alphavirus or flavivirus.Conclusion The dominant mosquito species in the China-Russia border ports of Heilongjiang Province is Ae.vexans.Although Plasmodium,alphavirus and flavivirus have not been detected,the vectors of mosquito-borne infectious diseases are widely distributed in all border ports.Monitoring and testing of mosquitoes and the pathogens should be carried out continuously.

Abstract:Objective To understand the preventive effect of different graded stone barrier on Coptotermes formosanus.Methods The experiment was carried out according to Efficacy Test Method and Evaluation of Insecticides for Termite Control for Pesticide Registration Part 3:Method of Efficacy Test of Termitcides for Soil Treatment(NY/T 1153-2013).Results During the experiment,the invasion of C.formosanus occurred in different materials.The graded stone barrier of soil(particle size ≤250 μm),fine river sand(particle size ≤ 250 μm),3 kinds of quartz sand(particle size of 380～600,600～1 000 and 3 350～4 750 μm)treatment groups were penetrated.The crossing distance of quartz sand(particle size of 2 360～3 350 μm)and activated carbon(particle size of 2 000～4 000 μm)treatment groups were＞10 mm.The crossing distance of crystal sand(particle size of 2 000～3 000 μm),coarse river sand(particle size of 2 000～3 000 μm),and quartz sand(particle size of 2 360～1 000 μm)treatment groups were ≤ 10 mm.Conclusion During the 90-day experiment period,crystal sand,coarse river sand and quartz sand with a particle size of 1 000-2 360 μm had better effect on preventing termites.And the materials were readily available.

Abstract:This paper reviews the systematic public health initiatives undertaken by the 30th Chinese medical team to Guinea,focusing on key issues such as Guinea's healthcare system,infectious disease burden,and vector control.Leveraging international public health advisors,field research,and literature analysis,the team implemented multiple interventions at institutions including the China-Guinea Friendship Hospital,the University of Conakry,health vocational schools,and Chinese-funded enterprises.These included advancing hospital infection management systems,conducting public health capacity training for medical staff,implementing mental health assessments,and innovatively establishing the first vector control office.The introduction of the"Three Circles"integrated mosquito control strategy significantly reduced vector density in key areas.Furthermore,the team provided tailored policy recommendations to Guinea's Ministry of Health(including the Disease Control Bureau and Biosafety Agency),successfully localizing Chinese public health practices such as the Patriotic Health Campaign concept and malaria elimination models.This practice demonstrates that integrating public health professionals into overseas medical assistance teams deepens the integration of medical care and public health,enhancing aid effectiveness.Future China-Africa public health cooperation could further strengthen top-level design,leveraging the One Health concept to advance more systematic disease prevention and control collaboration.

Abstract:Objective To analyze the population density and distribution characteristics of cockroaches in rehabilitation and convalescence centers and formulate precise prevention and control strategies.Methods Based on ecological niche differences,the monitoring area was divided into four types of habitats:vacant houses,nutrition buildings,convalescent rooms and family quarters.Sticky paper was randomly placed in cockroach houses at a ratio of 20％,and continuous monitoring was carried out for five months.All the collected specimens were taxonomically identified and statistical analysis were carried out.Results A total of 400 pieces of sticky paper were placed in the cockroach house(386 valid sticky papers were recovered),and 60 cockroaches were captured,with an overall density of 0.16 cockroaches per piece.The distribution of cockroaches reached its peak in December(with a density of 0.22 cockroaches per sheet),and the differences in the room invasion rate and the catch of cockroaches in each month were statistically significant(all P＜0.05).Among them,Blattella germanica was the dominant population(accounting for 90.0％),and its density shows a significant niche differentiation from that of Periplaneta americana(accounting for 10.0％).Conclusion The prevention and control of cockroaches in this rehabilitation and convalescence center should focus on strengthening environmental management during the high-incidence period from December to January of the following year,and optimizing the pest control plan based on the characteristics of the dominant population of B.germanica.At the same time,a continuous monitoring system should be established in combination with the business characteristics of convalescent institutions,and the cockroach prevention and control measures in rehabilitation and convalescent center should be constantly improved.This will effectively reduce the risk of vector transmission,improve the convalescent environment,and further ensure the health and safety of convalescent institutions and staff.

Abstract:Objective To explore the repellent effect of natural active ingredients,and investigate the repellent effect of Tripterygium wilfordii extract against Aedes albopictus and Aedes aegypti.Methods The repellent effect of T.wilfordii extract and its mosquito repellent milk were determined by attack test and repellent test.The content of triptolide in the extract was analyzed by high performance liquid chromatography(HPLC).Results T.wilfordii extract had a good repellent effect on Ae.albopictus,and the concentration was positively correlated with the average effective protection time.At the concentration of 35 g/kg,the average effective protection time reached 5.0 h.Further,the T.wilfordii extract was processed into mosquito repellent milk for repellent activity test,and it was found that the mosquito repellent milk had a good repellent effect on Ae.albopictus and Ae.aegypti,and the average effective protection time reached 5.0 h and 3.7 h at the concentration of 30 g/kg,respectively.The results of HPLC showed that the extract contained 0.007 2％triptolide,the landmark active ingredient.Conclusion T.wilfordii extract has good mosquito repellent activity and possesses the development potential for plant-derived mosquito repellent products.

Abstract:Objective To investigate the bacterial pathogen-carrying status of Hyalomma asiaticum in Jiuquan,Gansu.Methods During May 2024,free-living H.asiaticum specimens were collected in Jinta County,Jiuquan.Morphological and molecular biological methods were used to identity tick species.The 16S amplicon sequencing method was then used to analyze the diversity of the sample microbial communities.Tick-borne bacterial pathogens of public health significance such as Rickettsia and Bartonella were selected for specific amplification,and carried out phylogenetic analysis after one-generation sequencing.Results Morphological and molecular biological identification verified that all collected samples were H.asiaticum.Analysis of microbial composition indicated that,at the genus level,Francisella and Rickettsia were the predominant genera.Notably,Rickettsia represented a tick-borne pathogen with public health significance.Phylogenetic analysis showed that the Rickettsia carried by H.asiaticumber of the spotted fever group of Rickettsia and a crucial zoonotic pathogen,belonging to Rickettsia sibirica.Conclusion H.asiaticum in the Jiuquan carrying R.sibirica,belonging to the spotted fever group Rickettsia(SFGR).It is important zoonotic pathogen,mainly causing North Asian ticks-borne spotted fever.This research bridges the gap in studies regarding Rickettsia carriage by ticks in this area,and provides important data for the study of H.asiaticum carrying Rickettsia sibirica in Jiuquan.

Abstract:Objective To analyze the monitoring data of imported vectors at Changshu Port from 2023 to 2024,summarize the input patterns of vectors,so as to provide reference for strengthening the quarantine,identification,surveillance of vectors at the port,preventing the import and spread of vector-borne infectious diseases.Methods Based on the interception of vectors by international shipping vessels,containers and cargo entering Changshu Port from 2023 to 2024,descriptive statistical method was used to analyze the quantity and proportion of vectors,distribution of interception time,species composition ratio,changes in interception volume,origin and correlation with carrying routes.Results From 2023 to 2024,34 species of imported vectors were intercepted at Changshu Port,including cockroaches,flies,mosquitoes,rodents,and ticks.Among the captured cockroaches,Blattella germanica,Periplaneta americana,and Neostylopyga rhombifolia accounted for 97.77％,1.95％,and 0.28％of the total number of cockroaches,respectively.Musca domestica,Delia platura,Fannia prisca,Chrysomya megacephala,and Lucilia sericata accounted for 47.75％,11.09％,8.20％,6.11％,and 6.11％of the total number of flies,respectively.Culex pipiens pallens,Aedes albopictus,Anopheles sinensis,and Culex quinquefasciatus accounted for 77.77％,11.11％,5.56％,and 5.56％of the total number of mosquitoes,respectively.Rodents were Rattus rattus.The tick was Amblyomma geoemydae.Cockroaches were mainly intercepted from Thailand and Indonesia,flies were mainly intercepted from South Korea and Indonesia,and mosquitoes were mainly intercepted from Indonesia and South Korea.The vectors at port mainly entered through inbound ships and containers,and were not intercepted in the cargo.Conclusion There are many types of vectors intercepted at Changshu Port,with a wide range of sources.The invasion risk of alien vectors and the resulting potential public health risks are high.Further strengthening the monitoring and prevention of vectors at the port is of great significance.