KinoChef
Review Concern over common cold spread, as well as the spread of
other viruses in schools, hospitals and other public places, should
lead to increased focus on good health habits. There are over 200
viruses that cause common colds and washing with soap and warm water
kills them. One of the best habits to remember in order to avoid
coming down with a cold is to wash your hands before you touch your
face, particularly your nose or mouth.
The
rhinovirus, the virus that is most easily grown in a laboratory
setting and the subject of most studies, can live for up to three
hours on skin and surfaces. Once the rhinovirus enters the nose, it
grows easily and infects the lining of the nose, causing sneezing,
congestion, coughing and often a low grade fever. Scientists estimate
that rhinoviruses cause approximately 30-35 percent of adult common
colds. For unknown reasons, some people become infected with
rhinoviruses and never develop symptoms, but may still be responsible
for common cold spread, since the virus can still be found in nasal
secretions.
Common
colds are one of the leading causes of missed school days and doctor
visits, even though that doctor visit may be unnecessary. Studies
indicate that viruses and common cold spread in the waiting rooms of
hospitals and doctor's offices. These viruses become airborne when a
person sneezes or coughs. So, another good health habit to remember,
when you have a cold, is to cover your mouth when you cough or
sneeze.
According
to the National Institute of Allergy and Infectious Diseases (NIAID),
children have about six to ten common colds per year. Adults
typically have less, with the average around three, but the range
varies widely. Those who work with the public and in hospitals have
more than those who work at home or in small offices. People who have
asthma are more susceptible to common colds than the average person.
Recent studies have shown that asthmatics produce less anti-viral
proteins, a function of the immune system, than normal. Supporting
the belief that efforts to maintain a healthy immune system can
reduce the number of colds a person has per year and thus reduce
common cold spread.
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