Serological diagnosis of adenovirus conjunctivitis

: We compared the serum antibody titers against adenoviruses of pair sera and the identification of isolated adenovirus from 17 patients with acute conjunctivitis. Isolated adenoviruses were Ad3 in ten cases, Ad8 in four cases, Ad37 in two cases, and Ad4 in one case. Among these cases, eleven cases showed identical results in a neutralization test. In one patient from whom Ad3 was isolated, no neutralizing antibody was found. In 3 patients from whom Ad8 or Ad37 was isolated, there were discrepancies between serological results of the neutralization test or the haemagglutination inhibition test, and viral isolation. Antibody titers against adenoviruses subgenus D, such as Ad8, 19 and 37 were increased not only for the isolated serotypes, but also for other serotypes of this subgenous.