Takagi Masahiro

Nagasaki University's Academic Output SITE: NAOSITE

176 Trop. Med., 40 (4), 176-178, December, 1998Database Analysis on Malaria and Its Vectors inNorthern ThailandMasahiro TAKAGIInstitute of Tropical Medicine, Nagasaki Universi書ty, Nagasaki, JapanReformatting, computing and analysis of all available data of malaria concerned innorthern Thailand have started to evaluate a long-term change in malaria and its vectorsituation, and to avoid missing and scattering valuable information in malaria epidemiologicalsurveys and studies which were carried out by Office of Vector Borne Diseases Control 2(previous Malaria Center 2) with collaborators in the past days. Firstly all readable stockeddata at provincial, district and country malaria offices were photocopied, examined qualities,and decided the format for the original electric database, which was composed of 5 items(general back ground, vector control measurement, environmental conditions, malaria inci-dence and vector abundance) of 34 parameters. It was found that a total of 4061 surveys hadbeen completed for 30 years since 1968 in 13 provinces with more than 400 surveys in 7provinces. Problems for analysis are: that about 20% of the data lacks key parameters suchas the number of human baits and so on, that data before 1968 are too weak to analyze, andthat the surveys had mainly been focused to problem areas, period, and recent 10 years.Nevertheless, a rough analysis based on 436 data sets of Maehongson Province, wheremalaria has been being serious, revealed clear temporal changes in vector and malaria situa-tion suggesting recent natural and social environmental changes in the province (Table 1, 2).we also have conducted a regular monitoring on vector occurrence and vegetation at severalvillages with different malaria endemicity to realize key environmental factors affectingmalaria epidemiology. We believe the completion of this database and analysis is helpful toyield more reasonable and harmonious malaria control strategy under unstable environmentwith radical developing.177Table 1. Order of anopheline abundance until 1987 and thereafter (until 1998) in Maehongson Province,northern ThailandAn.species　; -1987annul,正tlsma cula tusmacula tus8a照dwongpornipseudo willmor!dravidicusOTuftffiminimus43.8128.4623.28ヰ.840.200.070.0720.19[7An.species　す-1998minim usmacula tusmacula tussa l帽dwongpornipseuaowHImoridra vk飼swillmoriI30.9129.621 4.407.900.471.375.48ゝ∠にaconituslllI15.84E>pnilippinensis i 10.50llllllll7.186.743.72vagusnivipeskochihyrcan uspedrta enk痢ssmensisoth e rsculicifa ciesbarbirostris4.040.290.123.630.800.52ivagusくlIII121.ヰ6annul正ris　　　　; 18.57barbirostris　　　: 16.82』, _I-i-I--i::====:;I:==- -IlllsplendidusIIlI0.50alrus o.50tessella tus　　　　;　o. 4 8varuna　　　　　　　:　　0.44Daconltusく=コkochi 15.411 4.931 2.821.050.03ll.742.31hyrc用n uSpe曲eniatussinen由othersnivipessplendidusculia胞cies111I111112.291.68dlrus 1.1 9tessella tussteph ens!帽runajeyporiensisamesipseudojemesicampestns0.680.150.140.140.090.060.05三っ】Js2をjsp.Astephens!campestns●jeyponensisames/0.140.120.030.00.01芸111IpseudojemesiIlllo.oc〕lIIltotal 1 43.82llI●｣II1philippinensis I o.o4SPAI1110.01total　　　　　　: 169.04178-育苧sl引≡I引引引萱■に　　　　　　　　=て)〔く8rコ【匂^Iロト!'.,エ]J･Jh(⊃cq,Ua===>(⊃ト.1PL,c⊂)∽bD亡⊂)J3q,(8ァ己∵ r=こ7　､∝)のki:▼}rf3cコヽ　　　′h4,+Jt+■Fdsサ:I74,,"ヨ･ト,'てコ5トーCOき嘘I･･･｣≡白37~ヽ｢l｣,エ].発Pa育d,.i⊃■■■ー°亡ヽ-■■′h･lの3日:�"サ;-⊂〕h°4-1Uq)>くづ'サH【匂▼d己ゝ.1⊂)●訂ァeqqの=コXIcdト,-ti竜郷害慧≡望萱■■=-■l封≡喜≡≡きに蓋7期3-責緋望朋萱■　　l　　　　■　　l　　　　■サーォ*�"0>く■｢■▲■BIcqヨの守▼~　l芦字音書聖書き毒●　　l　　　　■　　l　　　　■It発　　　(BS喜蔓附害慧慧=封≡≡…≡…■ヰ■毒喜肘葦≡室ss■　　　　　　　　■(0.聖○¢`ユ.∽ ･室璽葛引飼育^Ei-呈器毎:-筆頭顎■　　　　　　　　　●　　　　　　　　　●o o　°　°　0　0弓喜萱妻雪§義一　　　　　　　　■　　　　　　　　■　　　　　　　　■　　　　　　　　■s萱雪雲喜発璽t　　　　　　　　　　　　　　　　▲　　　　　　　■　　　　　　　■　　　　　　　●ミ[〓萎一書の≡≡喜館　　　　　　　　P　　　　　　　　　　　　　　　　　館　　　　　　　　　　　　　　　　　Il日′ヽo正2年喜冨田葦§くIdl占t占　olo ol l l I I l　　　　4　　l I I IO日SE≡♀Sき萱き§+　　　　　　　館　　　　　　　　　　　　　　館　　　　　　　t　　　　　　　館S帽飼萱萱萱萱■　　l　　　　●　　　l　　　　●Sほ雪聖書…§■　　　　　　　　　　　　　　　　　■　　　　　　　　■　　　　　　　　　　　　　　　　　■主+l飼主日日享葦6-653^

Database Analysis on Malaria and Its Vectors in Northern Thailand

Takagi, Masahiro

Nagasaki university's Academic Output SITE

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Database Analysis on Malaria and Its Vectors in Northern Thailand

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