Dr. Muhammad Sajjad Hasan M.D.

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...

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...

The severity of meningitis varies from one person to another. In common cases, medications can help solve the problem and the person may recover within 1 to 3 weeks. But in cases where there is a risk of the infection spreading to the meninges, hospitalization and other confirmation tests might be...

The initials 'HIV' stand for Human Immunodeficiency Virus. As the name suggest, it is a viral attack that completely weakens the defense systems of a human being leaving them open to invasion from bacteria and other disease causing micro-organisms.Once infected, the virus finds its way into the...

Influenza Influenza, also commonly called as the flu, is a highly contagious respiratory infection caused by viruses, particularly influenza A or influenza B. These viruses usually infect the throat, nose, and lungs. Although the flu causes mild symptoms in most people, it can also cause severe...

Lyme disease is an infectious disease caused by four different species of bacteria. In Europe and Asia, it spreads through Borrelia afzelii and Borrelia garinii, while in the USA, it spreads through Borrelia burgdorferi and Borrelia mayonii. The disease is transmitted to humans via a common...