Species Composition and Seasonal Activities of Malaria Vectors in an Area at Reintroduction Prevention Stage, Khuzestan, South-Western Iran
AbstractBackground: The most part of Iran become malaria-free region and fall in prevention of re-introduction stage. These regions however are struggling with imported of malaria cases where malaria vectors exist. Therefore, understanding the situation of mosquito vectors is crucial. This study was carried out to find out the present situation of malaria vectors and malaria transmission potential in a malaria-free area.Methods: The study was conducted in a malaria free area, Izeh County, Khuzestan Province during 12 months in 2011–2012. Five villages, including 2 in highlands and 3 in plain area, were selected randomly. The mosquito sampling methods were conducted using spray sheet and hand catch collection methods from indoor/outdoors, window trap and larvae collections.Results: In total, 3352 female Anopheles were captured, 1826 mosquito from highland and 1526 from plain areas. Five species, An. stephensi, An. fluviatilis s.l., An. dthali, An. superpictus and An. pulcherrimus were identified. The seasonal activities were started from April to March. The abdominal conditions of collected mosquitoes from indoor/outdoor places pointed to exophilic propensity of An. fluviatilis.l. s.l. and endophilic behaviour for rest of the vectors. The results of window trap also confirmed these behaviors. The larval habitats of four species were widelydispersed and included spring, margin of rivers, irrigation channels, stagnant water and rice filed.Conclusion: Understanding the present situation of malaria vectors in free-malaria area is crucial particularly where is struggling with imported cases. The results of present study can be expanded to other area of northern Khuzestan for malaria vector control planning in reintroduction prevention stage.
Akbari H, Majdzadeh R, Rahimi Foroushani A, Raeisi A (2013) Timeliness of ma- laria surveillance system in iran. Iran J Publ Health. 42: 39–47.
Azizi MH, Bahadori M (2013) Brief histor- ical perspectives of malaria in Iran. Arch Iran Med. 16: 131–135.
Basseri H, Raeisi A, Ranjbar Khakha M, Pakarai A, Abdolghafar H (2010) Sea- sonal abundance and host-feeding pat- terns of anopheline vectors in malaria endemic area of Iran. J Parasitol Res.20(10): Article ID 671291.
Basseri H, Moosakazemi S, Yosafi M, Moheb- ali M, Hajaran H (2005) Anthropophily of malaria vectors in Kahnouj d, south of Kerman, Iran. Iran J Publ Health.34: 27–37.
Chakraborty S, Ray S, Tandon N (1998) Sea- sonal prevalence of Anopheles stephensi larvae and existence of two forms of the species in an urban garden in Cal- cutta City. Indian J Malariol. 35: 8–14.
Dev V, Bhattacharyya PC, Talukdar R (2003) Transmission of malaria and its control in the northeastern region of India. J Assoc Physicians India. 51: 1073–1076.
Enayati AA, Vatandoost H, Ladonni H, Townson H, Hemingway J (2003) Mo- lecular evidence for a kdr-like pyrethroid resistance mechanism in the malaria vector mosquito Anopheles stephensi. Med Vet Entomol. 17: 138–144.
Eshghi N, Motabar M, Javadian E, Manou- cheri AV (1976) Biological features of Anopheles fluviatilis.l. and its role in the transmission of malaria in Iran. Trop Geogr Med. 28: 41–44.
Farhadinejad R, Mousavi M, Amraee K (2013) Fauna and monthly activity of Anophe- les mosquitoes in Mahshar County, Khuzestan Province in 2012. Iran J In- fect Dis Trop Med. 62:43-47 (in Persian).
Gunasekaran K (1994) Age composition, nat- ural survival and population growth of Anopheles fluviatilis s.l. James, 1902, the major malaria vector in the endem- ic belt of Koraput County, Orissa, In- dia. Southeast Asian J Trop Med Pub- lic Health. 25: 196–200.
Hanafi-Bojd AA, Azari-Hamidian S, Vatan- doost H, Charrahy Z (2011) Spatio- temporal distribution of malaria vec- tors (Diptera: Culicidae) across differ- ent climatic zones of Iran. Asian Pac J Trop Med. 4: 498–504.
Hemami MR, Sari AA, Raeisi A, Vatandoost H, Majdzadeh R (2013) Malaria elim- ination in iran, importance and chal- lenges. Int J Prev Med. 4: 88–94.
Kar I, Eapen A, Ravindran KJ (1996) Do- mestic breeding sources and their con- tribution in Anopheles stephensi breed- ing in Dindigul, Tamil Nadu. Indian J Malariol. 33: 191–199.
Manouchehri AV, Djanbakhsh B, Eshghi N (1976a) The biting cycle of Anopheles dthali, A. fluviatilis and A. stephensi in southern Iran. Trop Geogr Med. 28:224–227.
Manouchehri AV, Javadian E, Eshighy N, Motabar M (1976b) Ecology of Anoph- eles stephensi Liston in southern Iran. Trop Geogr Med. 28: 228–232.
Manouchehri AV, Rohani F (1975) Notes on the ecology of Anopheles dthali Patton in southern Iran. Ann Trop Med Parasitol. 69: 393–397.
Manouchehri A, Ghiasseddin M, Shahgudian ER (1972) Anopheles dthali Patton,1905, a new econdary vector in south- ern Iran. Ann Trop Med Parasitol. 66:537–538.
Nanda N, Joshi H, Subbarao SK, Yadav RS, Shukla RP, Dua VK, Sharma VP (1996) Anopheles fluviatilis s.l. com- plex: host feeding patterns of species S, T, and U. J Am Mosq Control Assoc.12: 147–149.
Raeisi A, Gouya, MM, Nadim A, Ranjbar M, Hasanzehi A, Fallahnezhad M, Sakeni M, Safari R, Saffari M, Mashyekhi M, Ahmadi Kahnali A, Mirkhani V, Almasian E, Faraji L, Paktinat Jalali B, Nikpour F (2013) Determination of malaria epidemiological status in Iran's malarious areas as baseline information for implementation of malaria elimina- tion program in Iran. Iran J Public Health. 42: 326–333.
Roll Back Malaria (2013) Global Malaria Action Plan for a Malaria-free World. Roll Back Malaria Partnership, WHO. Avaiable at: http://www.rollbackmalaria. org/gmap/2-3.html).
Sahu SS, Gunasekaran K, Vanamail P, Jam- bulingam P (2011) Seasonal prevalence and resting behaviour of Anopheles minimus Theobald and An. fluviatilis James (Diptera: Culicidae) in east-central India. Indian J Med Res. 133: 655–661.
Sahu SS, Gunasekaran K, Jambulingam P (2009) Bionomics of Anopheles minimus and An. fluviatilis s.l. (Diptera: Culi- cidae) in east-central India, endemic for falciparum malaria: human landing rates, host feeding, and parity. J Med Entomol. 46: 1045–1051.
Service MW (1976) Mosquito Ecology: Field Sampling Methods. John Wiley and Sons, New York.
Shahandeh K, Basseri H, Pakari A, Riazi A (2010) Mosquito vector biting and community protection in a malarious area, Siahoo County, Hormozgan, Iran. Iran J Arthropod Borne Dis. 4: 35–41.
Shahgudian ER (1960) A key to the Anoph- eles of Iran. Acta Med Iran. 3: 38–48.
Sharma RS (1995) Urban malaria and its vectors Anopheles stephensi and Anoph- eles culicifacies (Diptera: Culicidae) in Gurgaon, India. Southeast Asian J Trop Med Public Health. 26: 172–176.
Vatandoost H, Shahi M, Hanafi-Bojd AA, Abai MR, Oshaghi MA, Rafii F (2007)
Ecology of Anopheles dthali Patton in Bandar Abbas County, Hormozgan Prov- ince, Southern Iran. Iran J Arthropod- Borne Dis. 1: 21–27.
Vatandoost H, Oshaghi MA, Abaie MR, Shahi M, Yaaghoobi F, Baghaii M, Hanafi-Bojd AA, Zamani G, Townson H (2006) Bionomics of Anopheles stephensi Liston in the malarious area of Hormozgan Province, southern Iran,2002. Acta Trop. 97: 196–203. Viswanathan DK, Rao TR, Rao TS (1945)
The behaviour of Anopheles fluviatilis, the behaviour of gravid females. J Malar Inst India. 6: 243–245.
WHO (2013) Malaria. Avaiable at: www. who. int/mediacentre/factsheets/fs094/en/.
WHO (2003) Malaria Entomology and Vector Control. WHO/CDS/CPE/SMT/2002.18 Rev.1.Part I. Geneva.
Zahar AR (1990) Vector bionomics in the epidemiology and control of malaria The WHO African Region and the Southern WHO Eastern Mediterranean Region VBC/90.2, MAL/90.2. Geneva.
Zahar AR (1974) Review of the ecology of malaria vectors in the WHO Eastern Mediterranean Region. Bull World Health Organ. 50: 427–440.
Zaim M, Subbarao SK, Manouchehri AV, Cochrane AH (1993) Role of Anopheles culicifacies s.l. and An. pulcherrimus in malaria transmission in Ghassreghand (Baluchistan), Iran. J Am Mosq Con- trol Assoc. 9(1): 23–26.