VECTORS OF AND FILARIASIS IN

Hoedojo*

ABSTRACT

Malaria at present is still one of the important -borne diseases in Indonesia. The disease is widespread all over the country and involves nearly all islands. Sixteen species have been reconfirmed as malaria vectors. They were distributed geographi- cally as follows: Coastal areas and lagoons ----- An sundizicus and An.subpictus Cultivated ricefields and swampy areas ----- An.aconitus, An.barbirostris, Annigerrimus and An .sinensis Forest inland areas in shaded temporary pools, muddy wallows and hoof-prints ----- An.balabacensis, An.bancrofti, Anfarauti, An.koliensis and Anpunctulatus Swamp forest edge in ditches with vegeta------An.1etifer and An.1udlowae tion Hilly areas in seepages, streams and clear moving water ----- Anflavirostris, An.maculatus and Anminimus.

The species (of most general importance is An.sundaicus, which is restricted) by its preference for brackish water and is prevalent in coastal areas of Java. Their types in behaviour of An.sundaicus appear as follows : 1. Ansumlaicus in South Coast of Java in general. This species is essentially anthropophilic, exophagic and rests outdoor. It shows susceptible to DDT. 2. An.sundaicus in Cilacap, Central Java. This mosquito is a pure anthropophilic form. It bites man in houses and outdoors, rests indoors and is known resistant to DDT. 3. An.sundaicus in Yogyakarta and Purworejo, Central Java. This mosquito is a strong zoophilic species. It rests and prefers to bite outdoors and shows tolerance to DDT.

Human filariasis in Indonesia is the result of infection by three endemic species, namely, , Brugia malayi, and .W.bancrofti infection is found in both urban and rural areas. Twenty species of mosquitoes are confirmed as filariasis vectors. The urban type bancroftian filariasis is transmitted by Culex quinquefasciatus, whereas the rural type is transmitted mostly by Anopheles spp., such as An.aconitus and An.punctulatus complex. The periodic species of Mansonia transmit the subperiodic noctural B.malayi. B.timori which is distributed in the Eastern part of Indonesia (East Nusa Tenggara), is transmitted by An.barbirostris. Some filariasis vectors such as An.aconitus and the An.puctulatus complex may function both as llariasis vector and malaria vector as well.

- - * Department of Parasitology, Faculty of Medicine, University of Indonesia

Bul. Penelit. Kesehat. 17 (2) 1989 Aabarbirostris with is confirmed as a vector of malaria in South Sulawesi, a vector of periodic nocturnal malayan filariasis in Central Sulawesi and as the only vector of timorian filariasis in Timor and Flores, has to be studied further as it has two types of behaviouristic appearance, namely : 1. An.barbirostris in Java This mosquito is an anthropozophilic species, feeds indoors and outdoors, and rest outdoors. None is found to transmit mosquitoborne disease. 2. An.barbir0stri.v in Sulawesi and East Nusa Tenggara (outside Java). This mosquito is a zooanthropophilic form, endo and exophagic, and rests outdoors. It is confirmed as a vector of malaria, periodic noctural malayan filariasis and the only vector of timorian filariasis.

INTRODUCTION in the eastern part of Indonesia, namely East Nusa Tenggara, such as in Alor, Flores and Diseases transmitted to man by mos- Timor . quito are well known. In Indonesia, such dis- Publications on malaria and filariasis eases of prime public health importance are vectors by many previous scientific workers malaria, filariasis, dengue hemorrhagic fever, are well documented (12.3,4,5.6,7) and the less important ones are Japanese B Encephalitis and Chikungunya. Malaria, which is due to the infection of VECTORS OF MALARIA and occurs widely throughout Indonesia Hoedojo (1983) reviewed malaria vec- and comprises nearly all islands. High in- tors in Indonesia which had been studied by cidence is found among people in the rural various workers from 1918-1957. Sixteen agricultural districts and also fishermen along species of Anopheles were corfiied. The the coastal settlements. same species of mosquitoes were also con- Filariasis in Indonesia is caused by the firmed as malaria vectors in Indonesia by the infection of three endemic spies of filarial Entomological Team of the Directorate worms, namely, Wuchereria bancrofri, General of Communicable Diseases Control, Brugia malayi and Brugia timori. Department of Health, during the study on Foci of bancroftian filariasis are found in malaria vectors which had been carried out in coastal regions and inland at low altitudes, in 1975-1984~. both urban and rural areas, such as in Java The malarian vectors in Indonesia and (Jakarta and Semarang), Sumatra, Kaliman- their bionomics in brief are as follows : tan, Sulawesi, Nusa Tenggara, Maluku and Irian Jaya. 1. Anopheles aconitus Donitz, 1902 Foci for Brugia- malayi infections are found primarily in rural areas. The disease is This species is present in lowland as well broadly endemic in Sumatra, Sulawesi and as in mountainous areas. The larvae were Maluku. found breeding in rice fields, irrigation chan- Foci of timorian filariasis are also found nels and in swamps. It was confirmed as one in rural areas, however,the disease exists only of the main malaria vectors in Java.

182 Bul. Penelit. Kesehat. 17 (2) 1989 2. Anopheles balabacensis Baisas, 1936 in temporary pools. This mosquito was con- This mosquito is present in jungle and firmed as one of the malaria vectors in Irian forested inland areas. It breeds in shaded tem- Jaya. porary pools, muddy animal wallows and hoofprints. An.balabacensis was confirmed 8. Anopheles lctifer Gater, 1944 as the chief vector of malaria in Kalimantan. This mosquito is present in the flat coas- tal plain and swamp forest edge. It breeds in 3. Anopheles bancrofti Giles, 1902 peaty water, wells, ditches with vegetation This species is present in swamp forest and fallen leaves. This species was confirmed edge and breeds in peaty water, wells and as a vector of malaria in Sumatra and Kali- ditches with vegetation and fallen leaves. mantan. This mosquito was confirmed as one of the malaria vectors in Irian Jaya. 9. Anopheles ludlowae Theobland, 1903 This species is present in hilly areas. An. 4. Anopheles barbirostris Van der Wulp, ludlowae breeds in fresh water river. It was 1984 confirmed as a malaria vector in Sulawesi. This mosquito is present in the same 10. Anopheles maculatus Theobald, 1901 areas as An.acoritus. The larvae were found breeding in rice fields, ditches, ponds and This mosquito is present in hilly and wells with vegatation and shade. An.bar- mountainous areas. It breeds in sunlit streams birostris was confiied as a malaria vector in and seepages. This species was confiied as Sulawesi and Nusa Tenggara. a malaria vector in Java and Sumatra.

5. Anopheles farauti Laveran, 1902 11. Anopheles minimus Theobald, 1901 This species is present incoastal swamps This species is present in foothill and and low-lying riverine areas and is found in hilly areas. It breeds in the shaded grassy practically all types of water collections, edges of sunlit streams. This mosquito was brackish as well as fresh water, in the open or confirmed as a malaria vector in Sulawesi. under shade. This mosquito was confirmed as one of the malaria vectors in West Irian. 12. Anopheles nigerrimus Gilles, 1900 This mosquito is present in lowland areas. It breeds in rice fields and swamps. It This mosquito is present in foothill and was confirmed as a malaria vector in Sumatra hilly areas. It breeds especially in the shaded and Sulawesi. grassy edges of clear slow-flowing streams. An.flavirostris was confiied as a malaria 13. Anopheles punctulatus Donitz, 1901 vector in Sulawesi. This species is present in the similar areas of An farauti and An.koliensis. An. 7.Anopheles koliensis Owen, 1945 punctulatus breeds in temporary rain water This species is present in grassland and pools. It was confirmed as a malaria vector in at the edge of the jungle. It breeds primarily Irian Jaya.

BuL Penelit. Kesehat. 17 (2) 1989 14. Anopheles sinensis Wiedemann, 1828 pophylic form. It feeds only on inan as there is no cattle present in this area. This This mosquito is present in the similar mosquito bites man both indoors atld out- areas to An.aconitus. It breeds in rice fields, doors; and is an endophylic species which ponds and marshes. An.sinensis was con- is found resting on hanging clothing, firmed as a malaria vector in Sulawesi. mosquito-curtains and walls. This mos- quito is known resistant to DDT. 15. Anopheles subpictus Grassi, 1899 3. An.sun&icus in Yogyakarta and Pur- This species is present in coastal, inland worejo, Central Java is a strongly zoo- and mountainous areas. Its breeding sites are philic s ecies with a human blood index similar to the breeding places ofAn.sundaicus of 1.3% . It feeds and rests outdoors, and and An.ac0nitu.s as well. It was confirmed as this mosquito is known tolerant to DDT. a vector of malaria in Java and Sulawesi.

16. Anopheles sundaicus Rodenwald t, CONFIRMED MALARIA VECTORS 1925 This mosquito is present in coastal areas. It breeds primarily in brackish water, marine fish ponds and lagoons. A fresh water form was found breeding in fresh water ponds in Sumatra. An sundaicus was codiirmed as a malaria vector in Java, Sumatra, Sulawesi and Nusa Tenggara. The distribution of malaria vectors in Indonesia based on the studies which had been carried out by previous workers are shown in table 1. Among the sixteen species of malaria vectors, An.sun&icus, which is prevalent in the coastal areas in Java; has to be studied further as it has variations in behaviour. Three types in behaviour of this species of mosquito appear as follows : VECTOR OF FILARIASIS 1. An.sundaicus in the South Coast of Java in Lim Boo Liat (1986) reviewed mosquito general, is highly anthropophylic as it vectors of filariasis in Indonesia which were shows its preference for human blood up reported by various workers. Twenty species to 86%6. It rests by day on vegetation of mosquitoes comprising of 8 Anopheles outdoors, and is known susceptible to spp., 6 Mansonia spp., 3 Culex spp. and one DDT. each of Aedes, Armigeres and Coquillettidia 2. An.sundaicus in Kampung village, were incriminated as filariasis vectors and Cilacap, Central Java, is a pure anthro- these were :

Bul. Penelit. Kesehat. 17 (2) 1989 Table 1. Distribution of malaria vectors in Indonesia

Locality Species Number Number of of of mos- sporozoites (islands Anopheles quitoes and sporo - Reference and towns) dissected zoite rate in %

JAVA Malang Venhuis, 1942a1 Purworejo Sundarararnan et al., 1957.12 Cihea Mangkoewinoto, 192313 ~dh~atma.,l985" (confirmed in 1954. 1978,1980,1982)

BALI

KALIMANTAN An. balabacensis Kp.Muara Pa- Goelarso, 193415 ngean ~dh~atrna,~.,1985~ (confinned in 1981,1982)

WEST IRIAN An. bancrofti Tanah Merah Metselaar, 195716

SULAWESI An.barbirostris Jeneponto Van Hell, 195217 Kendari Van Hell, 195217 NUSA TENGGARA Adhyatma..l985 (Confiied in 1980) IRIAN JAYA Danau Sentasi Metselaar, 1957" Lembah Nimboran Metselaar, 1957l5

SULAWESI Kendari Van Hell, 1952"

WEST IRlAN Kotabm Toffaleti and King, 194718 Lembah Himboran Metselaar. 1957"

SUMATRA Belaw an Swellengrebel and19 S-de Graaf, 1919c

Adhyatrna.,l985 , (confirmed in 1984)

SULAWESI Margosuko Van ~ell,1952]~ Malili Van ~ell.1952~'

Bul. Penelit. Kesehat. 17 (2) 1989 185 Table 1. Distribution of malaria vectors in Indonesia jconflrmed)

Locality Species Number Number of of of mos- sporomites (islands Anopheles quitoes and sporo - Reference and towns) dissected zoite rate in %

SUMATRA An.maculatus Kisaran 130 1 0.8 Doorenhos. 19271°

JAVA Wonosobo 130 1 0.8 Sundarararnan et. al., 1957" Kediri 136 2 1.5 Venhuis, 1941;'

SULAWESI Anminimus Kalili Van ~ell,1952'~

SUMATRA An.nigerrimus Palembang Overheek. 1940b~~

SULAWESI Kolaka Van Hell. 195216

WEST IRIAN An.puncfulatus Lembah Nirnboran Metselaar. 195715 Biak Metselaar, 195715

SULAWESI An.sinensis Benteng Van Neil, 195216

JAVA Pamanukan

JAVA An.subpictus Pantai Selatan sundararaman," et.al.1957 Jawa Timur ~dh~atrna,~.,1985" (confirmed in 1982) SULAWESI Ujung Pandang ~odenwaldt,1924~~ Bolukumba Van Hell, 195216

JAVA An.sundaicus Merak Mangkoewinoto,1918'~ Pantai Selatan Jateng Sundarararnan, et.al.,195711

SULAWESI Bajang Van Hell. 195216

SUMATRA,EAST NUSA TENGGARA Confirmed in 1982,1979 (Adhyatma.1985)

Bul. Penelit. Kesehat. 17 (2) 1989 An. Aconitus 13. An.koliensis An. Bancrofri 14. An.larauti An. barbirostris 15. An. punctulatus An. farauti 16. Cx.latigans An. koliensis 17. Cx.annulirostris An. nigerrimus 18. Cx.bilaeniorrhyn- An. punctulatus chus An. subpictus 19. Ae.kochi Ma. annulata 20. Ar.obsturbana Ma. annulifera Ma. bonneae Brugia malayi Wuchereria bancrofh' Ma. dives Brugia timori Ma. indiana Ma. uniformis Cx. annulirostris 3. CuLex bitaeniorhynchus Giles, 1901 Cx. bitaeniorhynchus Cx. quinguefasciatus This species breeds in earthen-lined fresh water collections such as in marshes The Non - Anopheline mosquitoes as with low shrubs, unshaded stagnant or slow- filariasis vectors in Indonesia and their running water, and in pools with green algae9 . bionomics in brief are as follows : It is an anthropozoophylic species and was incriminated as a rural bancroftian filariasis 1. Culex quincuefasciatus Say, 1823 vector in West Irian. This species is abundant in harbour 4. Aedes kochi.Donitz, 1901 towns and cities. It breeds primarily in pol- luted ditches and ground pools8. Cx. guin- This mosquito breeds in leaf axils of guefasciatus was recognized as the only several species of plants (banana, pine apple) urban bancroftian filariasis vector in Java and was reported as a common pest species in (Jakarta and Semarang). Irian Jaya (Bonne-Wepster, 1954). It was in- criminated as a nual bancroftian filariasis 2. Culex annulirostris Skuse, 1889 vector in West Irian. This mosquito was found breeding in puddles, ditches and swamps (Bonne- 5. Annigered obturbans Walker, 1860 Wepster, 1954). The larvae often share the This species was found breeding in ar- breeding sites with An.punctulatus complex. tificial or vegetable breeding sites such as old This species was incriminated as a rural barrels, tins, rain water receptacles, and fallen bancroftian filariasis vector in West Irian. coconuts9. The water in the breeding sites is often extremely dirty containing decomposed Brugian vectors Bancroftian vectors organic matter. Ar.obturbans was incrinated as a rural bancroftian filariasis vector in West Irian.

Bul. PeneUt. Kesehat. 17 (2) 1989 6. Coquille~crassipes Van der Wulp, while An.nigerrimus and An.barbirostris 1892 were incriminated as the periodic malayan filariasis vectors in Sulawesi. This species was found breeding in a An.barbirostris in Nusa Tenggara was small lake with Ipomoes plantations10. It incriminated as vector of timorian filariasis. breeds usually in fringe habitats of forested 6 It is apparent from the above mentioned areas . Ca.crassipes was incriminated as a data, that some species of Anopheles may rural bacroftian filariasis vector in West Irian. function both as the vectors of malaria and the vector of filariasis as well. 7.Mansonia spp. Particular attention should be paid to These mosquitoes were found breeding in An.barbirostris, which was incriminated as swampy areas with water plantations such as the vectors of : Eichorrnia crassipes, Pistia stratiotes, Sal- 1. malaria in South Sulawesi and Nusa vinia natans, and Ipomoea aquatics. They Tenggara. were incriminated as the nocturnal sub- 2. periodic type of malayan filariasis in periodic malayan filariasis vectors in : Central Sulawesi and Nusa Tenggara. Java (Ma.uniformis, Ma.indiana) 3. timorian filariasis in East Nusa Tenggara Sumatra (Ma.bonneae, Ma.dives, (Timor and Flores). Ma.annulata, Ma.indiana and Ma.uniformis) An.barbirostris should be studied fur- Kalimantaa (Ma.annulata, Ma.unifor- ther as it has two types of behaviouristic ap- mis) pearance, namely : Sulawesi (Ma.bonneae, Ma.dives, Ma.uniformis) 1. An.barbirostris in Java and Sumatra. Maluku (Ma.uniformis) This mosquito is an anthropomphylic Eight species of Anopheles incriminated form, feeds indoors and outdoors, and rests as filariasis vectors were as follows : outdoors, None is found to transmit mosquito-borne disease.

2. An.barbirostris in Sulawesi, East Nusa Tenggara, and East Timor. This mosquito is a zooanthropophylic form, endo- and exophagic, and rests out- doors. It was recognized as the transmitter of the diseases caused by malaria and filarial worms (B.malayi and B.timori). An.aconitus and An.subpictus were in- crinated as the transmitters of the rural of REFERENCES bancroftian filariasis in Flores. An.bancrojti, An farauti, An.koliensis, 1. Lie,KJ. and D.M. Rees. (1958). Filariasis in In- donesia : distributon, incidence and vectors. andAn.punctu1ctus were reported as the rural Proceedings of the International Congress of bancroftian filariasis vectors in West Irian, Medicine and Malaria, Lisbon, 11:360.

188 Bul. Penellt. Kesehat. 17 (2) 1989 2. Gandahusada, S.and Sumarlan (1978). Malaria in 14. Smalt, F.H.(1937). Penodieke droogkgging van Indonesia (A Review Literature). LokaLarya sawahs ter bestrijding van malaria Med. Penelitian dan Pengembangan Kesehatan. Dienst. Ned. Ind., 26: 285-299. Jakmta, 57 pp. 15. Goelarso (1934). The importance of AnJeucos- 3. Sustriayu. N. (1978). Review on diseaees vectors phyrus. Trans. Roy. Soc. Tmp. Med Hyg., and animal reservoirs. Lokakarya Penelitian 44: 683-694. dan Pengembangan Kesehatan, Jakarta, 29 16. Metselaar, D.(1957). A pilot project of nsidual PP. insecticide spraying in Netherlands New 4. Hoedojo.(l983). Vektor malaria di Indonesia. Guinea, contribution to the knowledge of Seminar Naaional Parasitologi ke-3, Ban- holocndemic malaria Acta Leidensia, 27: dung. Indonesia, 16 pp. 1-128. 5. Adhyatma.K(l985). Vektor malaria di Indonesia. 17. Hell, J.C. van (1952). The anopheline fauna and Dit.&n. PPM dan'PLP. Departemen Kese- malaria vectors in South Celebes. Doc. Med. hatan Republik Indonesia, 37 pp. Hyg., 44: 683494. 18. Toffaletti. J.P. and M.V., King (1947). Some 6. Kitnowardoyo, S.(1985). Status of malaria vectors records of mosquito dissections in Northern in Indonesia. South East Asian J. Trop. Med. New Guinea. Trop. Dis. Bull.43: 958-959. Pub. Hlth.. 16 (1): 129-132. 19. Swellenpbel, N.H. and J.M.H. Swellengrebel- 7. Lirn. B.L.(1986). Filariasis in Indonesia : a sum- &-Graaf, (1919~).OndenoJcingen over & mary of published information fom 1970- verapreiding der anophelinen in verband met 1984. Tropical Biomedicine 3: 193-210. die der malaria in ecnige stations van Java en 8. Hocdojo,(1%2). The biology of Culex guinquefas- Sumatra. Med. Burg. Gen. Dienst. Ned. Ind. ciatus Say in Jakarta, Indonesia. Thesis for 8. (X): 1-67. the M.Sc.&p, University of Utah, USA, 20. Doonnbos, W.B. (1927). Zijn de muaLicten die 68 PP. malaria ondehouden abnormal levende ex- 9. Wijono, K(1%2). The Culicinc Mosquito Fauna of emplaren 7 Geneesk. Tjidchr. Ned. Ind., 67 : Jakarta, Indonesia Thesis for the USc. de- 21-27. gree. University of Utah, USA, 61 pp. 21. Venhuis, W.G.(1941). De vindplaataen van gein- 10. Bonne-Wepster, J.(1954). Synopsis of a Hundred fecteerde Anopheles maculatus tijdens an Common Non-mopheline Mosquitoes of the epidemie in Oast Java Gene&. Tijdschr. Greater and Lesser Sundas, the Molluccas Ned. Ind.. 81: 2178-2188. and New Guinea. Elsevier Publishing Com- 22. 0verbeek.J.G. (194%). Malaria ondenoek in & pany, Amsterdam, 147 pp. kolonisatie Belitang (Res.Palembang) in 11. Venhuis, W.G. (1942a). Anopheles aw~tusaan April 1940. Geneesk. Tijdschr. Ned. Ind.. 80: kaliwanden. Geneesk. Ti~dschr.Ned. Ind., 2166-2177. 82: 99-1 12. 23. Soesilo,R.(1935a). The hyrcanus (sinensis) prob- 12. Sundararaman,S.,R.M. Soeroto, and M. Siran, lem in Java (Preliminary report). Med. (1957). Vectors of malaria in Mid Java. In- Dienst. Volksgez. Ned. Ind.34: 68-71. dian J. Malariology, 11: 321- 338. 24. Rodenwaldt, E.(1924). Specieaassanienurg. Arch. 13. Mangkoewinoto.R.M.M. (1923). Assainee~gder Schiffs. Trop. Hyg., 28: 313-334. Tjihea vlaktc. Med. Burg. Geneesk. Dienst. 25. Mangkoewinoto, R.M.M.(1918). Anophelinen van Ned. Ind. 12: 237-275. West Java. Geneesk. Tijdschr. Ned. Ind.. 28: 462-498. QUESTIONS AND ANSWERS :

1. Question: Is An.nigerrinurn a vector of periodic B.malayi ? Answer : That is true according to the team of the Directorate of Communicable Diseases Centre, Department of Health.

2. Question: In which part of South Kalimantan is Cq. crassipes a vector of Bmalayi. Dissection of tbousaods specimens show the presence of L3 of Cardiofilaria, not B.malayi. Answer : According to Dr. Lim B.L. it is found in South Kalimantan and from more than 8.000 mosquitoes dissected, 0,05 % were infected natdy. 3. Question: Where does An.ludlowae exist ? And who has the specimen ? The species does not exist anymore. Answer : In Sulawesi according to Van Hell (1952). It is found in Malili. 23 mosquitoes dissected: 1 positive with sporozoites.

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