note making plzzzzzzz make thw the note making if u help me then i will follow u and also tell the subtitle of the passage
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The fact that we can catch cold
repeatedly creates another
difficulty. Usually a virus strikes
only once and leaves the victim
immune to further attacks. Still
we do not gain immunity from
colds. Why? It may possibly be
due to the fact that while other
viruses get into the bloodstream
where antibodies can oppose
them – the viruses causing cold
attack cells only on the surface.
Or it may be that immunity from
one of the many different
viruses does not guarantee
protection from all others. It
seems, therefore, that we are
likely to have to suffer colds for
some time yet.
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