Christine Hahn MD


Flu Complications

Although most cases of influenza (flu) get better without causing other problems, complications sometimes develop. Possible complications of flu include: Pneumonia, which is an inflammation of the lungs. Primary influenza viral pneumonia develops soon (24 to 36 hours) after flu symptoms start and does not get better…

Influenza (Flu)

Influenza (flu) is an infection, caused by a virus, that makes you feel very sick, often with fever, headache, body aches, and coughing. People often use the term “flu” to describe a cold or a stomach virus. But influenza isn’t a stomach problem (although some little children may have vomiting and diarrhea). And it…

Typical Smallpox Vaccine Reaction

Source: U.S. Centers for Disease Control and Prevention (CDC). Available online: http://www.bt.cdc.gov The pictures show a typical reaction to the smallpox vaccine. First, a small bump (papule) forms at the vaccine site 3 to 5 days after vaccination. This becomes a pus-filled area (pustule) a few days later. The pustule…

Flu Vaccine Myths

Many people choose not to have the influenza vaccine because of myths they believe about the disease or the vaccine. Myth: Influenza is a minor illness. Truth: Influenza and its complications caused from 3,000 to 49,000 deaths each year from 1976 to 2006 in the United States. 1 Myth: The vaccine causes the flu. Truth…

Chickenpox and Smallpox Rash Comparison

Source: The U.S. Centers for Disease Control and Prevention (CDC). Differences between chickenpox and smallpox Chickenpox Smallpox How initial symptoms differ 0 to 2 days of mild illness pass before the rash develops. 2 to 3 days of severe illness pass before the rash develops. Lesions first appear on the face or trunk…