| changing scenario of hepatitis a virus and hepatitis e virus exposure among the primitive tribes of andaman and nicobar islands, india over the 10-year period 1989-99. | the andaman and nicobar islands, union territory of india, are home to six primitive tribes. studies carried out earlier among these tribes revealed very high rates of hepatitis b infection. we have now studied hepatitis a and e infection among them. a total of 951 serum samples were collected from four accessible tribes (nicobarese, shompens, onges and great andamanese) and tested for antibodies against hepatitis a and e viruses. in addition, 240 serum samples collected a decade earlier from ag ... | 2002 | 12081610 |