isolation of virus in products of conception in spontaneous abortion

two hundred pa t ient s o f t he l ow socioe conomic g roup wi th an aborti on o f the f i r s t t r i mest e r were stud 1ed . the s ter i l e produc ts o f concept ion were c ul t ured on gr e e n monke y kidney ti s sue cul t ure f or v i r a l de t e c - tion. four po s i t i ve herpe s virus, two positive rubella v~ru s and t hree pos i tive unidentifie d entero v irus l ike vlrus were obtained the sera of 192 of these patients were titrated for rubella antibody. the sera of a control group of 150 normal pregnant women were titrated for rubella antibody and 8.8 per cent of these patients had a negative titre and 21.3 per cent , 1 had a tltre over 40