Dr. Barbara D Alexander M.D.

Herpes simplex is a retrovirus that infects humans. The virus is passed from one person to another through direct physical contact or contact with anything that has come in contact with saliva or other body fluids of an infected person.Once the virus enters the body, it has a clever mechanism to...

As complex as it is, meningitis can sometimes be a threat to life. Treating meningitis can be tricky, hence, it needs a team of medical practitioners to make a diagnosis and offer treatment for the condition.  You can call your doctor immediately under the following circumstances:...

Borrelia burgdorferi is a gram-negative bacterium, which is the causative organism of Lyme disease. It is most commonly found in North America and Europe. Lyme disease is a zoonotic vector-borne disease. A zoonotic disease is a disease that can be transmitted from animals to humans and...

HIV (human immunodeficiency virus) is a viral disease that can be passed and spread by a number of ways including sexual contact and childbirth if the pregnant mother is infected. HIV is a disease that destroys the body's immune system, and it is considered a sexually transmitted disease...

What is shivering?Exposure to cold or rapid shifts in temperature usually causes uncontrollable shivering. However, many other possible causes can cause shivering or chills. An uncontrollable shivering that persists for a longer time may indicate an underlying illness that requires immediate medical...

Lyme disease is a bacterial infection that transmitted to human beings through ticks. Usually, getting this disease means that you will be sick for a very long time. Some people spend their entire lives living with the disease. The good news is that you can treat the disease within two years.Lyme...