| sex-related differences in immunoglobulin m and in total antibody response to hepatitis a virus observed in two epidemics of hepatitis a. | sixty symptomatic and 42 asymptomatic cases of hepatitis a detected during two epidemics on the greek island of crete in autumn-winter, 1978-1979 were tested for serum total and immunoglobulin m (igm) specific antibody to hepatitis a virus (anti-hav and igm anti-hav) by commercially available solid phase radioimmunoassays. all cases of symptomatic hepatitis a tested during the first eight weeks from onset were igm anti-hav positive with a geometric mean titer of 1:3,575 at 0-28 days from onset. ... | 1984 | 6095654 |