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Virus Research, 1999
Since the poliomyelitis eradication program began in 1988, the number of poliovirus infected continents and countries have decreased from five to two and from greater than 100 to 53, respectively. A nearly 90% reduction in the incidence of polio has been achieved with a corresponding decrease in virus genomic heterogeneity.
W R, Dowdle +4 more
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Since the poliomyelitis eradication program began in 1988, the number of poliovirus infected continents and countries have decreased from five to two and from greater than 100 to 53, respectively. A nearly 90% reduction in the incidence of polio has been achieved with a corresponding decrease in virus genomic heterogeneity.
W R, Dowdle +4 more
openaire +2 more sources
Vaccine, 2001
The virulence of rubella virus for the fetus was fully defined between 1963 and 1965 when an epidemic of rubella occurred in Europe and the US, followed by a wave of damaged babies. Attenuated live virus vaccines were developed in our and other laboratories and their use has already considerably changed the epidemiology of rubella.
openaire +2 more sources
The virulence of rubella virus for the fetus was fully defined between 1963 and 1965 when an epidemic of rubella occurred in Europe and the US, followed by a wave of damaged babies. Attenuated live virus vaccines were developed in our and other laboratories and their use has already considerably changed the epidemiology of rubella.
openaire +2 more sources