Multidrug-Resistant Salmonella enterica, Democratic Republic of the Congo

remains to be clarifi ed. However, our previous hypothesis that prenatal or perinatal transient infection was an unlikely mode of virus acquisition needs to be modifi ed because PARV4 infection in newborns has recently been demonstrated (10). Although we lacked IgM and IgG serologic data to interpret our fi ndings, our study suggests that PARV4 genotype 3 infection might be characterized by viral persistence, reactivation, or reinfection. Additional longitudinal studies, including serologic testing for short intervals, are needed to determine the pathogenesis and potential public health role of PARV4 infection.