How does the West Nile virus spread?
West Nile virus is spread mainly through the bite of an infected mosquito.
Who is at risk of becoming ill from West Nile virus?
Anyone can become ill, but older adults and people with weakened immune systems or certain chronic health conditions are at greater risk of severe illness.
What steps can someone take to prevent or treat H1N1 influenza?
To help prevent H1N1, get vaccinated, wash hands often, cover coughs and sneezes, and avoid close contact with sick people. If ill, rest, drink fluids, and contact a health-care provider; antiviral medicines may be prescribed and work best when started early.
How is the H1N1 influenza virus spread?
H1N1 spreads mainly through respiratory droplets released when an infected person coughs or sneezes. It can also spread when someone touches a contaminated surface and then touches their mouth, nose, or eyes.
What events likely led to the outbreak of cholera in Haiti?
The 2010 earthquake worsened Haiti’s already limited sanitation and clean-water systems. Cholera was likely introduced by infected UN peacekeepers, and sewage contaminated the Artibonite River, allowing the disease to spread.
Why is H1N1 influenza called “swine flu”?
It is called “swine flu” because the virus was related to influenza viruses found in pigs.
How could the situation in Haiti be improved?
The situation could be improved by providing safe drinking water, repairing sanitation systems, and properly treating sewage. Health care, education about preventing cholera, and vaccination could also help control the outbreak.
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