1255 results found
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… Overview HIV (human immunodeficiency virus) is a virus that attacks the immune system. This is the body's … has trouble fighting off disease. The last stage of HIV infection is AIDS (acquired immunodeficiency syndrome). But …
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… includes people who have had certain types of cancer, had hepatitis after age 11, or are at high risk for HIV infection. Blood testing. After donation, every unit of … certain diseases, such as hepatitis B and C, HIV, West Nile virus, syphilis, and HTLV-I/II viruses. If any disease is …
Health topics
… What is smallpox? Smallpox is a contagious infection caused by the variola virus. Smallpox can be deadly, so if an outbreak happens, it … smallpox immunization ended in Canada in 1972. Smallpox virus is known to exist in labs at the Centers for Disease …
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… inner cheek, uvula, or lip pierced include: Pain. Bleeding. Infection at the site of the piercing. Infections, such as hepatitis B , hepatitis C , and HIV . Speech problems. Chewing and …
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… What is bird flu? Bird flu is an infection caused by a certain kind of avian influenza virus. Although there are many kinds of bird flu, the most … that concern health workers are H5N1 and H7N9 bird flu viruses. These viruses are found in wild birds. Most of the …
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… Mononucleosis (mono) is a common illness caused by a virus. It can start with a sore throat and swollen glands. … feel better. What causes mono and how does it spread? The virus that usually causes mono—the Epstein-Barr virus … mono test to come back negative early in the course of the infection ( false negative ). Complete blood count. This may …
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… herpes is one of the most common sexually transmitted infections (STIs) . Most people never have symptoms, or the … genital area. What causes it? Genital herpes is caused by a virus—either the herpes simplex virus type 1 or the herpes simplex virus type 2. You get …
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… all pregnant women be screened for human immunodeficiency virus (HIV) infection. footnote 1 , footnote 2 This is because early … HIV status is unknown, there is a chance that you have the virus. If you do have HIV, your baby could also become …
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… Overview The human immunodeficiency virus (HIV) changes (mutates) often. Sometimes these changes make the virus resistant to a medicine or class of medicines. This … should you be tested for resistance? You may be tested for infection with a resistant virus when: You are diagnosed …
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… contagious (easily spread) illness caused by the rubella virus. It is usually a mild illness. But in rare cases, it … If you are pregnant and get infected with the rubella virus, you are at risk for miscarriage. And your baby … fluid from the mouth, nose, or eyes of someone who has the infection. A person who has the infection can spread these …
