China's
Bird Flu Goes Airborne
23
May, 2013
As
if China was not suffering enough from a slumping economy, the South
China Morning Post
now reports that the
H7N9 'bird flu' virus that has infected 131 people (and killed 36) so
far can be transmitted not only by close contact but by airborne
exposure.
Domestic reports suggest the virus appears to be brought under
control largely through restrictions at bird markets but the team at
the University of Hong Kong has also found that pigs
can be infected
(cue 'when pigs can fly' pun). The findings suggest that there may be
many more cases that have been detected or reported since "people
may be transmitting the virus before they know they've even got it."
For
more information on individual patients infected: blue, patients
infected with the H7N9 virus under treatment; red, those infected
with H7N9 who have died; yellow, those who have fully recovered; and
pink, those infected other types of the Influenza A virus, including
H1N1.
The
H7N9 bird
flu virus can be transmitted not only through close contact but by
airborne exposure,
a team at the University of Hong Kong found after extensive
laboratory experiments.
...
"We
also found that the virus can infect pigs,
which was not previously known," said Dr Maria Zhu Huachen, a
research assistant professor at HKU's School of Public Health.
...
It
was found the virus could spread through the air, from one cage to
another, albeit less efficiently.
...
This
means there may be more cases than have been detected or reported.
...
"People
may be transmitting the virus before they even know that they've got
it,"
Zhu said.
...
She
said the government had collaborated with HKU on intensive
surveillance of both birds and pigs. Zhu added that people who
regularly had close contact with live poultry or pigs should take
precautions, have routine body checks and report their case
immediately if they feel unwell.
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