Dear Dr. Theriot:   My husband and I have a two year old daughter. When she was born, she received the hepatitis vaccine. I remember that it was three shots. I was told that she would be protected for life against hepatitis. We are going to Mexico this spring and a friend, who is a […]

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Question:   My husband and I are taking our children (7 and 10 years) camping in the High Sierras this summer. I must have been warned by three different people about Giardia and the water. What is Giardia, and are there any precautions I need to know about?   Answer:   Giardiasis refers to an […]

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