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Epidemiological studies of the habu in the amami islands japan


, : Epidemiological studies of the habu in the amami islands japan. Snake 10(1): 65-66, 100

The habu [Trimeresurus sp.] is a venomous snake whose bite is a serious health problem for the inhabitants of Amami and Ryukyu Archipelago (north of Japan). Many cases of habu bite are reported to occur in these infested areas every year. The purpose of the present joint study is to confirm the possible underlying mechanism of the epidemiology of the habu bite. From 1967 to 1976, 1673 cases of habu bite, including 20 deaths, occurred in both Amamioshima and Tokunoshima. The patterns of the seasonal, diurnal and geographical distribution of the habu bite clearly reflected both human and habu activity. The body-parts most frequently attacked by the habu are the extremities, suggesting that almost all of the habu bites occurring in the Amami Islands may be prevented if these body-parts are effectively protected by long leather boots or heavy gloves. The population at risk was approximately 35% of the total local population. The annual incidence of habu bites in Amamioshima tended to decrease each year while that in Tokunoshima stayed almost the same. A field survey of the habitats of habus was carried out in Tokunoshima. The habu is wild in its habitat in principle but often invades farm, road and even human dwellings for its food. From an ecological point of view, the problems of the population density, mobility and geographical distribution of habus were discussed. A model experiment was proposed to evaluate the efficiency of a barrier for preventing habu invasion.

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Related references

Tanaka H.; Hayashi Y.; Wada Y., 1979: Epidemiological studies on factors correlated with the snake bite by habu trimeresurus flavoviridis in amami islands japan. The occurrence of bites by habu, T. flavoviridis on the Amami Islands is decreasing on Amami Oshima and increasing on Tokunoshima. The bite cases in the latter become more than in the former since 1960 showing an incidence per 1000 population of 6...

Wakisaka, I.; Miyashita, M.; Ando, T.; Takano, A., 1978: Epidemiological features of habu bites in amami islands japan. The epidemiological features of habu bites [Trimeresurus sp.] in the Amami Islands (Japan) were investigated. During the period from 1972-1976, 1285 cases of habu bite including 11 deaths were recorded to occur in both Amamioshima and Tokunoshima....

Wakisaka I.; Miyashita M.; Ando T.; Takano A.; Kawabata N.; Kihara H., 1979: An epidemiological study of habu bites in amami islands japan. Over 5 yr (1972-1976), 1285 cases of habu bites were reported in the Amami Islands. The total number of those who were bitten by habu was 1265, of which 287 on Tokunoshima Island and 214 on Amamioshima Island were interviewed for a possible underl...

Tomari, T., 1987: An epidemiological study of the occurrence of habu snake bite on the Amami Islands, Japan. This study was carried out in order to estimate the risk of habu snake bite on the Amami Islands in relation to meteorological and human behavioral factors. A time-series analysis of the seasonal variation of habu snake bite was also carried out i...

Wakisaka, I.; Sawai, Y., 1978: Epidemiological studies for habu in Amami-islands. The habu Trimeresurus sp. is a venomous snake whose bite is a serious health problem for the inhabitants of Amami and Ryukyu Archipelago (north of Japan). Many cases of habu bite are reported to occur in these infested areas every year. The purpos...

Tanaka, H.; Hayashi, Y.; Wada, Y., 1979: Epidemiological studies on factors correlated with the snake bite by habu, Trimeresurus flavoviridis, on the Amami Islands. The occurrence of bites by habu, T. flavoviridis on the Amami Islands is decreasing on Amami Oshima and increasing on Tokunoshima. The bite cases in the latter become more than in the former since 1960 showing an incidence per 1000 population of 6...

Sawai, Y.; Kawamura, Y.; Araki, Y.; Tomihara, Y., 1999: A historical outlook on studies of habu bites in the Amami and Okinawa Islands of Japan. Rodda, G H [Editor], Sawai, Y [Editor], Chiszar, D [Editor], Tanaka, H [Editor] Problem snake management: The habu and the brown treesnake 107-115

Sawai, Y..; Kawamura, Y..; Araki, Y..; Tomihara, Y.., 1999: A historical outlook on studies of habu Trimeresurus flavoviridis bites in the Amami and Okinawa Islands of Japan. Unknown

Wakisaka, I.; Miyashita, M.; Ando, T.; Takano, A.; Kawabata, N.; Kihara, H., 1979: An epidemiological study of habu-bites on the Amami Islands. Over 5 yr (1972-1976), 1285 cases of habu bites were reported in the Amami Islands. The total number of those who were bitten by habu was 1265, of which 287 on Tokunoshima Island and 214 on Amamioshima Island were interviewed for a possible underl...

Wakisaka, I.; Miyashita, M.; Ando, T.; Takano, A., 1978: Epidemiological features of habu-bites in Amami-islands. The epidemiological features of habu bites Trimeresurus sp. in the Amami Islands (Japan) were investigated. During the period from 1972-1976, 1285 cases of habu bite including 11 deaths were recorded to occur in both Amamioshima and Tokunoshima. T...