Dr. Mary Theresa Lasalvia M.D.

Meningitis occurs when the meninges, the protective membranes surrounding the brain and spinal cord, get inflamed or irritated. Meningitis is an outcome of certain bacteria or viruses entering the body when our immune system is weak.These bacteria and viruses live in the nose, throat, or the...

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...

What is mumps?Mumps is a highly contagious viral infection. The virus invades the parotid glands of the individual causing pain and inflammation of these glands. It is characterized by a “hamster-like” swelling of the patient’s face. The initial symptoms may take up to two weeks to manifest....

Classified as DENV-1, DENV-2, DENV-3, and DENV-4, there are four types of viruses belonging to one group (Flaviviridae) that are responsible for infecting humans with dengue fever. The route for transmitting the virus from one infected human to another is via the bloodsucking bite of the female...

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...

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...