Effect of population immunity against hepatitis A in day-care centers

Research output: Contribution to journalArticlepeer-review


The authors investigated 21 groups with hepatitis A (HA) introduction into 16 day-care centers in a district of Xi'an, studied the infection condition and the effect of population immunity against HA on the HA transmission. The results showed that when the level of population immunity prior to HA introduction was below 50 percent, population immunity played no significant role in the HA transmission.

Original languageEnglish (US)
Pages (from-to)220-222
Number of pages3
JournalZhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi
Issue number4
StatePublished - Aug 1993
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)


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