Another group, Libert et al

Dating the origin of the ccr5

However, certain unlucky individuals experience a particularly destructive clinical course, which is otherwise unexplained but appears to be genetically mediated. Another group, Libert et al.

The mutation is found principally inIn general many viral infections are

In general many viral infections are asymptomatic or produce only mild symptoms in the vast majority of the population. The mutation is found principally in Europe and western Asia, with higher frequencies generally in the north. Individual cities experienced high mortality, but overall mortality in Europe was only a few percent. The model includes the effects of sampling, which we show can give rise to local peaks in observed allele frequencies. The broadest area of high frequency is located in northeastern Europe, particularly the Baltic region, as represented by samples from Sweden, Finland, Belarus, Estonia, and Lithuania.