Cough Into Your Sleeve! ... and Other Strategies to Fight the Flu
Make it through flu season — here’s what you need to know about flu prevention and treatment.
December 2009/January 2010
By Linda B. White, M.D.
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Control the spread of seasonal flu and H1N1 by keeping the viruses out of the air — and off of your hands.
ISTOCKPHOTO
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As winter closes in, once again we brace for flu season. This year brings an extra complication: the H1N1 influenza virus, also known as swine flu. To help you make sense of what’s in the news and be prepared, here’s a quick look at what you need to know about H1N1 and seasonal flu, and how to stay healthy.
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Anatomy of a Flu Virus
Influenza viruses are highly contagious. Sneezes and coughs propel the viral droplets into the air or onto hands, and some viruses can survive on surfaces long enough to be contracted by contact with a borrowed pen, a doorknob, etc. Rub your eye, nose or lips shortly afterward, and presto — you’re sick.
The jury is currently out on exactly how long the flu, and especially H1N1, can survive on surfaces. Reported time periods range from eight hours (according to the Centers for Disease Control and Prevention; CDC), to 48 hours (according to the Mayo Clinic). On the other hand, Arthur Reingold, head of epidemiology at the University of California, Berkeley, says there’s virtually no evidence to prove that people can catch the influenza virus from germs found on their hands. (Regardless, frequent hand washing is still a good way to reduce the risk of contagious illnesses in general.)
One to three days after exposure, symptoms develop: fatigue, fever (in most cases, but not all), body aches, headache, sore throat, cough — even vomiting or diarrhea. Children may also develop middle ear infections. People with respiratory ailments, such as asthma, are especially vulnerable to complications such as pneumonia. Whereas influenza viruses typically take a greater toll on the very young and the elderly, H1N1 has so far proved worse for children and young adults.
Flu Prevention and Treatment Tips
Focus on these measures to hinder the flu’s spread:
- Sneeze or cough into your elbow or a tissue, not your hands.
- If you or your child falls ill, stay home. The contagious period stretches from one day before symptoms strike to five to seven days thereafter. The CDC recommends staying home until you’re without fever for 24 hours.
- Many organizations stress that vaccination is an effective precaution to take during flu season, but if you’re not a fan of flu vaccines, you can keep your immune system at its best with a healthy diet, adequate sleep, regular exercise and relaxation.
- Though they have yet to be tested against H1N1, some herbs have displayed antiviral properties. The list includes ginger, licorice and garlic (use it raw in food). Two small studies have shown that a proprietary elderberry syrup (Sambucol) can reduce the flu’s severity. Immune-enhancing herbs such as ginseng and eleuthero (Siberian ginseng) have been shown to help prevent viral respiratory infections, including the flu. Astragalus also acts as an immune tonic. Taken in adequate dosages, echinacea and andrographis have been shown to curtail upper respiratory infections.
- Antiviral drugs such as Tamiflu (oseltamivir), which is derived from Chinese star anise, and Relenza (zanamivir) may make flu symptoms milder. Most experts recommend reserving these to prevent disease in high-risk individuals and to treat those with severe symptoms.
