Dr. Mark Douglas Call M.D.

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• Langerhans cells

  These are dendritic skin cells and contain Birbeck granules which is an organelle. In almost all the layers of the epidermis, langerhans cells are found. In the stratum spinosum they are the most prominent. Also, in the papillary dermis they occur. They are also found in the mucosa of the vaginal...

• How Do You Contract Mononucleosis?

  The Epstein-Barr virus is one of the eight known viruses of the herpes family. This disease is very contagious, and it can also result from other diseases. This disease affects young adults and teenagers. Those who contract this disease develop the signs and symptoms after being infected for a...

• What Is Cholera: Get the Facts

  Cholera is a very dangerous disease, which is caused by the bacterium called Vibrio cholerae. Someone infected with cholera experiences painless and watery diarrhea. Due to continuous diarrhea, one is likely to develop dehydration which can result in death. Many people who get cholera happen to...

• Your Guide to Using Valtrex

  Valtrex is the name of the drug that contains valacyclovir. It is prescribed for many infections caused by the herpes virus, which includes cold sores, genital herpes, and shingles. Herpes virus can appear on any part of the body, but most often, it shows in the genitals and mouth. There are two...

• What To Do When You Get Positive COVID-19 Results

  With the consistent rise of confirmed COVID-19 cases in the United States, it is not impossible that you can also acquire the infection.As per the usual guidelines we see on the television or social media, you've been told to monitor signs and symptoms like colds, runny nose, dry cough, difficulty...

• What Are the Signs and Symptoms of AIDS?

  Acquired immunodeficiency syndrome, or AIDS, is a serious secondary immunodeficiency disorder. AIDS is caused by human immunodeficiency virus (HIV). There is progressive destruction of cell-mediated (T cell) immunity. Also, both conditions are characterized by subsequent effects on humoral immunity...