SEROLOGICAL SURVEY FOR SV5, MEASLES AND HERPES SIMPLEX INFECTIONS IN NEWLY-IMPORTED CYNOMOLGUS MONKEYS

Abstract
On 592 cynomolgus monkeys of newly-imported 14 different groups, sero-epidemiological follow-up surveys of natural infections with SV5, measles (MV) and herpes simplex (HSV) were conducted both at the time of arrival and at the end of the 9 wk quarantine period of Tsukuba, Japan. At the time of arrival, the positive rate of antibodies against these viruses greatly varied with different countries of origin. As regards SV5, the positive rate ranged widely from 0-94.9% among different import-groups, being markedly low in the Philippine monkey groups. The positive rate of MV antibody was generally very high, varying from 11.1-78.2% in almost all import-groups except 2 groups from Indonesia in which no positive case was detected. Concerning HSV, every import-group had a very high positive rate though the average antibody titer was not so high. The positive rates of SV5 and MV markedly increased by the end of the quarantine period. MV positive rate reached 100% in almost all of the import-groups. Two Indonesian groups showed no increase of SV5 and MV markedly increased by the end of the quarantine period. MV positive rate reached 100% in almost all of the import-groups. Two Indonesian groups showed no increase of SV5 and MV positive rates during the quarantine period. No increase of SV5 positive rate was detected either with any of 3 Philippine groups. As for HSV, the positive rate remained unchanged or rather decreased during the quarantine period in almost all groups except 2 Indonesian groups having shown a significant increase.

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