Dr. John J Dreyzehner MD

Strep throat is an infection that causes sore throat or pharyngitis. It is usually called an infection of the tonsils and throat. Strep throat is caused by bacteria living in the nose and throat known as group A streptococcus. Just like other bacterial infections, you can get the disease from a...

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...

IntroductionBoth bacterial and viral infections are caused by microbes, such as bacteria and viruses. These microbes are spread through the following:...

Introduction Pyrexia is the medical term for fever, in which the human body temperature rises above the average normal (37 degrees Celsius or 98.6 degrees Fahrenheit). Pyrexia is one of the most common symptoms of numerous medical conditions.There are multiple factors can affect the normal body...

IntroductionAlthough doctors have the best intentions, it does not always mean that they will perfectly recognize their patient’s greatest need. For this reason, patients also need to take an active role when it comes to communicating with their doctor.One of the best ways to make sure that...

What is anemia?Anemia occurs when there are low levels of red blood cells (RBCs) in the body. Red blood cells are the ones that carry oxygen all over the body. So when a person's RBC count is lower than normal, it means that there is not enough oxygen in the blood, causing symptoms of anemia, such...