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  1. What Is the JC Virus? Medically Reviewed by Christopher Melinosky, MD on August 23, 2022. Written by Sunny Sea Gold. Who Gets Sick? Symptoms of PML. Diagnosis. JC Virus, Multiple Sclerosis, and...

  2. 2023年12月1日 · Epstein-Barr is a type of herpesvirus known as herpesvirus 4. Once you're infected with EBV, the virus stays in your body forever. It can stay inactive or it can reactivate and you can have...

  3. The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award ...

    • Types
    • Prevention
    • Causes
    • Symptoms
    • Diagnosis
    • Treatment

    Herpes simplex viruses -- more commonly known as herpes -- are categorized into two types: herpes type 1 (HSV-1, or oral herpes) and herpes type 2 (HSV-2, or genital herpes). Most commonly, herpes type 1 causes sores around the mouth and lips (sometimes called fever blisters or cold sores). HSV-1 can cause genital herpes, but most cases of genital ...

    Pregnant women with genital herpes should talk to their doctor, as genital herpes can be passed on to the baby during childbirth.

    For many people with the herpes virus, which can go through periods of being dormant, attacks (or outbreaks) can be brought on by the following conditions:

    Symptoms of herpes simplex virus typically appear as a blister or as multiple blisters on or around affected areas -- usually the mouth, genitals, or rectum. The blisters break, leaving tender sores.

    Often, the appearance of herpes simplex virus is typical and no testing is needed to confirm the diagnosis. If a health care provider is uncertain, herpes simplex can be diagnosed with lab tests, including DNA -- or PCR -- tests and virus cultures.

    Although there is no cure for herpes, treatments can relieve the symptoms. Medication can decrease the pain related to an outbreak and can shorten healing time. They can also decrease the total number of outbreaks. Drugs including Famvir, Zovirax, and Valtrex are among the drugs used to treat the symptoms of herpes. Warm baths may relieve the pain ...

  4. 2024年3月8日 · You get protection, or “ immunity ,” from a specific disease when your immune system makes an antibody for it. Natural immunity happens after you get infected by a germ and your immune system ...

  5. 2023年12月19日 · Experts believe the virus that causes COVID-19 spreads mainly from person to person. There are several ways this can happen: Droplets or aerosols. This is the most common transmission. When an...

  6. 2023年11月15日 · The highly transmissible COVID-19 delta variant, also known as B1617.2, was found in India in October 2020. It was the dominant strain in the U.S. and several other countries during the fall of ...