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Molecular epidemiology of a coxsackievirus B3 outbreak

An outbreak of coxsackievirus B3 infection occurred in South Africa in 1984 with a variety of clinical manifestations being observed. Fifty‐one isolates from patients ranging in age from young babies to middle‐aged adults were obtained. To define further the epidemiology of this outbreak all isolates were characterised by either 1‐ or 2‐dimensional oligonucleotide mapping. One‐dimensional mapping was found to be highly successful for initial screening of the isolates before further characterisation by 2‐dimensional fingerprinting. All isolates were found to be essentially the same strain of coxsackievirus B3 although slight variations in both the 1‐ and 2‐dimensional patterns could be observed. Some coxsackievirus B3 strains from geographically unrelated regions but isolated during the same time period as the outbreak showed clearly distinguishable oligonucleotide maps.