The virus watch program: a continuing surveillance of viral infections in metropolitan New York families. VII. Observations on viral excretion, seroimmunity, intrafamilial spread and illness association in coxsackie and echovirus infections.

Age Factors Antibodies/analysis Child Child, Preschool Coxsackievirus Infections/epidemiology,genetics,microbiology Cytopathogenic Effect, Viral Echovirus Infections/epidemiology,genetics,immunology,microbiology Enterovirus/isolation & purification Enterovirus B, Human/isolation & purification Feces/microbiology Female Humans Infant Male New York New York City Population Surveillance Seasons Sputum/microbiology Time Factors

Antibodies