Dr. Seth Michael Bloom M.D., PH.D.

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...

IntroductionThe only way to prevent serious and life-threatening diseases such as meningitis is through vaccination. Meningitis can also be caused by viral, bacterial, and fungal infections. The infection usually affects the meninges or membranes that enclose the brain and spinal cord. Although...

What is HIV?HIV is a virus that was discovered in the 1980s. It attacks a person's immune system, causing it to be too weak to fight outside infections. The HIV virus works by destroying white blood cells, called CD4 cells, in the immune system, and progresses through three stages, the last of which...

Lyme disease is caused by ticks where the bacteria enter the body through its bite. It takes about three to four days for the tick to settle in the body. The initial symptom of the bite is a rash. As the bacteria moves deeper into the system, the symptoms that can be experienced are muscle pain,...

You've probably heard stories of people who have died of meningitis, or you've heard that contracting it is as simple as kissing someone with the infection. However, being aware of what is fact and what is fiction is important. Below are some of the myths about meningitis and their truths. ...

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...