Dr. Polly Kate David MD

Cold sores are small, painful blisters that form on the lips or skin around the nose, mouth, or chin. Also called as herpes labialis and fever blisters, cold sores are caused by a herpes simplex virus (HSV) infection. It usually begins in childhood or young adulthood and continues to persist...

Lyme disease is an infectious disease caused by a bacterium called as Borrelia burgdorferi. It is transmitted to humans via a common tick after feeding on human blood. In most affected individuals, the disease is acute, which is only lasting for a short period of time. But for the rest, the bacteria...

HIV is a virus that attacks and slowly destroys the immune system of the body. Once the virus gets into the body, it gets incorporated in the bloodstream and destroys white blood cells in the immune system. The immune system is a natural system that protects the body from infections. HIV is found in...

Caused by bacteria and viruses, meningitis is an inflammation (swelling) of the protective membranes covering the brain and spinal cord known as the meninges. The inflammation is usually caused by an infection of the fluid surrounding the brain and spinal cord. It can develop as a result of injury,...

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...

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...