The mutant flies died much more rapidly than did normal flies, the team reports 24 March in Science, evidence that the RNAi mechanism is at least one of the fly's
defenses against viruses.
You knew your morning parfait was doing your body good — but also know that it's helping your body boost
its defenses against viruses, says D'Adamo.
Not exact matches
That's because young children are exposed to many new germs (
viruses or bacteria) and haven't yet built up enough
defenses against them.
He said he was contacted by DARPA soon after MERS was first reported in 2012 and asked to study the
virus from the viewpoint of biological
defenses against it.
As an additional safety feature, the researchers introduced two mutations that weakened the
virus's ability to combat the cell's
defenses against infection, reasoning that the mutated
virus still would be able to grow in tumor cells — which have a poor antiviral defense system — but would be eliminated quickly in healthy cells with a robust antiviral response.
Therefore, our main interest was to determine whether E-cig exposure has any impact on pulmonary immune
defenses against bacteria or
viruses that are commonly associated with acute exacerbations of COPD.
When puppies are too young to be vaccinated
against the parvo
virus and they have not been protected by maternal antibodies as a result of vaccination of a breeding female, they lack the
defenses to fight
against this aggressive
virus.