Fight Against Cold
Christmas is fast approaching and so the breeze
of air is much colder than the past few months. Changes of weather temperature
greatly affect the human body. If our immune system is weak then we can easily
get different viruses that cause cold. No one is exempted, both adults and
young ones can experience.
Expert says adults on average get two
to five colds a year; school children can get as many as seven to ten. The
elderly tend to get infected less because they’ve built up immunity to many
viruses.
Rhinovirus is the most common viral
cause of the common cold, accounting 30% to 50% of adult colds, and there are
more than 150 strains of it. Factors such as stress, lack of sleep and people’s
overall health can make them more likely to get infected. More than 150
strains- genotypes of the rhinovirus have been identified and researchers
believe there are probably many more.
Rhinovirus replicates best in the
relatively lower body temperatures of the upper respiratory area, such as the
nasal passages, sinuses and throat.
Other viruses-including the corona
virus, respiratory syncytial virus and entero virus-have also been identified
causing cold symptoms.
Exercise, reducing stress, getting
good sleep and hand hygiene can help you avoid colds.
Some experts believe having one cold
virus and weak immune system could make catching another virus easier. Because
the epithelial linings in the nose are weakened when you have a cold, the
broken down mucus- membrane barrier may be more prone to picking up another
virus. But others suggest that proteins such as interferous, with are secreted
during a cold to help fight the virus, may also boost resistance to getting
infected by a second virus, according to Dr. Fauci of the NIH.
“Prevention
is better than cure”
We
can avoid colds by simply taking good care and extra careful with our body.
The Cold Facts:
F Adults on average get
two to five colds a year, mostly between September and May. Young children can
get as many as seven to 10 colds.
F More than 200 different viruses
cause colds, and scientists continue to discover new ones.
F Colds are more
contagious about two days before symptoms start and in the early stages of
illness.
F The average cold lasts
two to 14 days. Coughs can linger up to six weeks.
Sources: National
Institute of Allergy and Infectious Diseases; Common Cold Centre (Cardiff
University); CDC
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