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Two hundred fifty-eight patients with clinically and serologically proven sporadic acute viral hepatitis during a period of past 7 years (January 1976-December 1982) were analyzed regarding epidemiology and outcome. The frequency of non-A, non-B (NANB) hepatitis was the highest among the three categories of viral hepatitis; 118 patients had hepatitis NANB (46%), 70 hepatitis A (27%), and 70 hepatitis B (27%). In NANB hepatitis, the mean age was older than in other categories of hepatitis and both sexes were equally affected, in contrast to the male predominance in types A and B. Chronic liver disease developed in 32% of patients with NANB hepatitis, but in none of patients with hepatitis type A or B. These results suggest that in Japan the infectious sources of hepatitis NANB virus(es) are more prevalent than those of hepatitis A and B viruses, and also suggest that one of the possible important factors for the high tendency to chronicity may be concerned with intimate contact with, or evolution from, asymptomatic NANB virus carriers.
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
September 1988,
Journal of medical virology,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
September 1983,
American journal of epidemiology,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
November 1984,
Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
October 1981,
Nihon rinsho. Japanese journal of clinical medicine,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
September 1996,
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A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
June 1982,
The Journal of infectious diseases,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
January 1988,
Lancet (London, England),
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
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T Sodeyama, and
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Y Akahane, and
S Furuta
January 1994,
Infection,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
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Y Akahane, and
S Furuta
June 1993,
Journal of medical virology,
A Nagata, and
K Kiyosawa, and
Y Koike, and
M Miura, and
Y Gibo, and
T Sodeyama, and
S Wada, and
Y Akahane, and
S Furuta
January 1981,
Scandinavian journal of infectious diseases. Supplementum,
