Health: A few hours after ( ;) I link-blogged this New
Scientist article about a case of the H5N1 avian flu transmitting
itself between humans, Boing
Boing put up this entry titled ‘Bird Flu risk extremely low’, which
concludes that the risk is effectively not worth worrying about.
It’s fundamentally wrong, and is well worth pointing out as a result.
As
Quinn at ambiguous.org says, it’s not the danger now that’s
important here — it’s the potential.
I read New Scientist religiously,
so I’ve been following it, and this search
on H5N1 gives the perfect illustration of why this is well worth
worrying about:
-
supplies of human flu vaccine in Thailand are very low, due
to rich countries in the North taking up the excess; one route
that flu strains pick up human-to-human transmission is through
‘co-infection’, where multiple flu strains infect the same person
and swap genes.
-
H5N1 has developed the ability to infect mammals already,
namely cats, and therefore has another vector.
- the
Chinese scientists studying H5N1 warn that ‘it is still evolving’,
and the current ‘Z genotype has so far had difficulty infecting
humans, but is lethal when it does. If it becomes more adept at this,
it could cause a severe human pandemic.’
- the
virus may have evolved human-to-human transmission. This is the
biggie; a flu that transmits bird-to-human is inherently much more
controllable, but once it gains the ability to jump directly to
other humans, the pandemic danger becomes much higher. If it gets
better at this, we could be in big trouble.
(Now, while it’s worth worrying about, it’s not us end-users who
should be doing the worrying. It’s the politicians who need to ensure CDC
and the WHO are funded well, the terrible state of vaccine development
and production be sorted out, the lack of outbreak monitoring infrastructure
be addressed, and research into these strains is funded
and given a priority, in case things do go all pear-shaped
influenza-wise.)
Tags: ability, boing, case, danger, flu, health, infect, new, risk, scientist, transmission