Koala retrovirus leads scientists to discover ‘second immune system’

K

ABC Science, 12/10/2019

The retrovirus spreading through the koala population is bad news. But studies of the koala infection have led scientists to a surprising discovery: a “second immune system” in the species, according to research published on Saturday in the journal Cell.

This system, which the researchers think exists in all mammals, has a role fighting off viruses that are in the same class as deadly human diseases such as HIV. This “second immune system” may illuminate new ways to treat HIV, said Damian Purcell, who heads up virology research at the Doherty Institute for Infection and Immunity.

By J Pope

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