Mehendale S M, Risbud A R, Rao J A, Banerjee K
National Institute of Virology, Pune.
Indian J Med Res. 1991 Jan;93:6-11.
Outbreak of dengue fever in Chikalthana, Pimpalgaon and Waloor villages in Parbhani district of Maharashtra (India) were investigated. Clinically, the illness was typical of dengue fever except for the absence of maculopapular rash. A total of 42 acute, 14 late acute, 73 convalescent and 19 sera from contacts were collected. Of the 15 virus isolates, 12 were identified as dengue virus type 2 and 1 as dengue virus type 1. Serological tests confirmed the etiological role of dengue virus in the outbreak. House-to-house survey was carried out in Chikalthana and Pimpalgaon villages. Overall, 15.09 per cent of the surveyed population was affected during the outbreak and attack rate was higher at Pimpalgaon. A tendency of water storage was observed in the households and concomitant entomological studies proved Aedes aegypti breeding. Higher prevalence of dengue fever was noted among larger families and in families that had two or more patients, the commonest duration between the first and the last patient was often less than 5 days.
对印度马哈拉施特拉邦帕尔巴尼区奇卡尔塔纳、平帕尔冈和瓦洛尔村登革热疫情进行了调查。临床上，除无斑丘疹外，该病为典型的登革热。共采集了42份急性期、14份晚急性期、73份恢复期血清以及19份密切接触者血清。在15株病毒分离株中，12株被鉴定为登革热2型病毒，1株为登革热1型病毒。血清学检测证实了登革热病毒在此次疫情中的病因作用。在奇卡尔塔纳和平帕尔冈村逐户进行了调查。总体而言，疫情期间15.09%的被调查人口受到影响，平帕尔冈的发病率更高。在家庭中观察到储水倾向，同时进行的昆虫学研究证明有埃及伊蚊繁殖。大家庭以及有两名或更多患者的家庭中登革热患病率较高，首例和末例患者之间的常见间隔时间通常少于5天。
