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对河北省４市、县急、慢性病毒性肝炎进行了病原分型研究。４３８例急性病毒性肝炎中，包括混合型感染在内，甲、乙、丙和戊型肝炎分别占 ５７． ３％、３０． ６％、６． ４％和 ９．１％。甲肝主要见于 １５岁以下，以 ７月～次年１月为高发季节；乙、丙肝主要见于２０岁以上，无明显高发季节，戊肝病例中多可检出抗－ＨＡＶＩｇＭ。１４５例慢性病毒性肝炎中，乙肝（包括混合型）占８６．２％；丙肝（包括混合型）占１４．５％；丁肝占２．８％；丙、丁肝中多可检出乙肝标志。１４．６％的急肝和８．３％的慢肝未能确定病原型。
In 4 cities of Hebei Province, acute and chronic viral hepatitis pathogenic typing. Of the 438 cases of acute viral hepatitis, including mixed infections, A, B, C and E accounted for 57% and 57%, respectively. 3%, 30. 6%, 6. 4% and 9.1%. Hepatitis A is mainly seen in patients under 15 years of age, July to January next year as the high season; B, hepatitis C were mainly seen in 20 years of age, no significant high season, hepatitis E cases can detect more anti-HAVIgM. Of the 145 patients with chronic viral hepatitis, hepatitis B (including mixed type) accounted for 86.2%; hepatitis C (including mixed type) accounted for 14.5%; D and hepatic accounted for 2.8%; C and D . 14.6% of acute liver and 8.3% of slow liver failed to identify the pathogen.