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Through studies, researchers of the
National Climate Center attached to the Chinese
Meteorological Administration have recently concluded that
the spread of the SARS viruses is associated with weather
conditions.
Researchers believe that some
weather elements, such as maximum air temperature, daily
temperature variations, and related humidity, are closely
linked to the spread of the SARS viruses. Research results
have shown that desirable conditions for the spread and
growth of SARS viruses have usually found expression in the
following settings: maximum air temperatures within 9 or 10
days before the breakout of viruses are relatively low at 26
℃ or under with reduced daily temperature variations
but increased relative humidity. On the contrary, weather
conditions running counter to the above — mentioned
setting are usually not desirable for the spread and growth
of the viruses. The data on which the conclusion was based
were primarily collected from the Beijing area. Researchers
are now collecting more data from extended areas for further
study.
Meteorologists suggest that people
should not visit hospitals, shopping centers or places
drawing large crowds on cloudy or rainy days. In addition,
people should keep their residences, hospitals, shopping
centers, offices, and schools well ventilated. The rise of
relative humidity will extend the survival of SARS viruses
or even help them spread to some extent, though high
temperatures in summer are not desirable for the spread and
growth of SARS viruses.
With this information,
meteorologists ask people to remain alert against the spread
of the SARS viruses, even during the summer, and keep their
environment well ventilated by not allowing the temperature
of their air conditioned environment to fall below 26 ℃.
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