A Single Mutation in Zika Led to Devastating Effects

ISTOCK, ubrxOne mutation in the Zika virus is responsible for catastrophic consequences in its hosts. A sequence change resulting in one amino acid substitution can convert an ancestral Zika strain that causes only mild microcephaly into one that causes severe fetal microcephaly in mouse...

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https://skpsoft.com/science/a-single-mutation-in-zika-led-to-devastating-effects/