Malaria vectors, epidemiology, and the re-emergence of Anopheles darlingi in Belem, Para, Brazil
Malaria vectors, epidemiology, and the re-emergence of Anopheles darlingi in Belem, Para, Brazil
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DOI：
10.1603/0022-2585-40.4.379
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发表时间：
2003-07-01
影响因子：
2.1
通讯作者：
Wirtz, RA
中科院分区：
文献类型：
--
作者：
Póvoa, MM;Conn, JE;Wirtz, RA
亚马逊贝伦市近70年来疟疾传播和流行病学评价表明：(1)1968年被消灭的达林按蚊在20世纪90年代中期重新出现，1997 - 1999年在3个采样区中有2个区数量明显增加；(2)一个。darlingi和An， aquasalis都与该市不同地区目前的疟疾传播有关；(3)蚊种多样性（以新吻按蚊亚属为例）从20世纪30年代的2种增加到20世纪40年代的6种，再到20世纪90年代的10种；(4) 1940 ~ 1996年贝伦地区疟疾病例发病率与人口规模之间没有整体相关性；(5)然而，自20世纪70年代末以来，在1993年至1999年的短期内，疟疾病例总数显著增加；(6)有趣的是，短期的增加仅仅是由于间日疟原虫感染病例；恶性疟原虫疟疾病例正在下降（仅在帕拉州显著下降）。安的再现。达林吉可能是20世纪90年代贝伦向周围森林持续扩张的结果。在缺乏预防措施的情况下，我们预测DAENT和DAICO地区的疟疾局部暴发会增加，而在这些地区，人口规模为558人。达林吉正在增加。
An evaluation of malaria transmission and epidemiology in the Amazonian city of Belem over the last 70 years shows that (1) Anopheles darlingi, reported to be eradicated in 1968, reappeared in the mid 1990s, with a marked increase in abundance between 1997 to 1999 in two of three districts sampled; (2) An. darlingi and An, aquasalis are each implicated in current malaria transmission in different districts of the city; (3) mosquito species diversity (in Anopheles subgenus Nyssorhynchus) has increased from two in the 1930s to six in the 1940s to 10 in the 1990s; (4) there is no overall correlation between malaria case incidence and human population size from 1940 to 1996 in Belem; (5) however, the total number of malaria cases has increased significantly since the late 1970s and over the short term from 1993 to 1999; and (6) interestingly, the short term increases are due solely to cases of Plasmodium vivax infection; cases of P.falciparum malaria are declining (significantly for Para state only). The reappearance of An. darlingi may be a result of the continued expansion of Belem into the surrounding forest in the 1990s. In the absence of preventative measures, we predict an increase in local outbreaks of malaria in the DAENT and DAICO districts where the population sizes of An. darlingi are increasing.