@article{oai:u-ryukyu.repo.nii.ac.jp:02016105, author = {只野, 昌之 and Bounlu, Khanthong and Phonekeo, Darouny and Vongxay, Phonsavanh and Sisouk, Thongchanh and Thongpaseuth, Souriyasack and Somoulay, Virasack and Panxayavong, Vimattha and 野崎, 宏幸 and Insisiengmay, sithat and 福永, 利彦 and Tadano, Masayuki and Bounlu, Khanthong and Phonekeo, Darouny and Vongxay, Phonsavanh and Sisouk, Thongchanh and Thongpaseuth, Souriyasack and Somoulay, Virasack and Panxayavong, Vimattha and Nozaki, Hiroyuki and Insisiengmay, Sithat and Fukunaga, Toshihiko}, issue = {3}, journal = {琉球医学会誌 = Ryukyu Medical Journal}, month = {}, note = {In December 1996 and July 1997, prospective and retrospective sero-surveys were conducted, in order to know incidence and prevalence of dengue infection among inhabitants in Kammouane province, Lao PDR. The study areas were selected at Thakhek-Neua (TN) village located in Thakhek (TK) City, which is most urbanized in the province, and Sisomseuan (SS) village and Phavang (PV) village located in agricultural area 50km northwest from TK City. In addition, SS faces on the root 13, which is a main road of Lao PDR, while PV is isolated from root 13 by bushes and Hinboun River. A total of 665 serum specimens were collected from the villagers, and were measured for the antibody to dengue virus antigen by hemagglutination inhibition test. The positive rate of antibody at TN (71.7%) was higher than either SS (52.1%) or PV (45.2%). There were no differences between positive rates of antibody at SS and PV. At TN, positive rates of antibody were higher than 80% in the age groups older than 6 years old except group of 16-25 years old. At SS, the seroprevalence increased with age, however the tendency to increase with age, however the tendency to increase was lower than TN. These results showed that there was transmission of dengue virus at SS village endemically, but lower than that of TN. On the other hand, low positive rates of antibody and no increasing of the rate were observed in three age groups less than 15 years old at PV. This suggests that there was very few transmission of dengue virus at least for 15 years in the village, because of isolated area. A few seroconversions were observed among susceptible population of the villagers who attended on both occasions of bleeding. This suggested that the levels of dengue transmission at three subject villages were low in the period of this study., 論文}, pages = {141--144}, title = {ラオス人民民主共和国,カムワン県の農村部および都市部における デングウイルス侵淫状況(1996年12月, 1997年7月)}, volume = {19}, year = {1999} }