Dr. Jason Harlow Friesen MD

Lymphocytes are a type of white blood cell produced in the bone marrow. A few lymphocytes enter the bloodstream while some move into the lymphatic system. Having a low or high lymphocyte count can help identify a person's medical condition. Normal lymphocyte counts usually vary from one laboratory...

What is a persistent cough?It can be annoying to have a cough that lasts for more than a couple of weeks. A cough is considered chronic or persistent if it does not go away after four weeks in children and eight weeks in adults. However, most persistent coughs are due to colds, flu, infection, or...

The chicken pox vaccine is the medicine given to people who are susceptible to the disease and hence protects one against the vaccine. This vaccine that causes the chickenpox disease is the varicella vaccine. This chicken pox vaccine is usually excavated from a weak virus. This weak virus is...

Peanut allergies are one of the most common allergies in children, and often result in serious allergic responses. Moreover, with peanut allergy, even a small amount of allergen may result in a serious response. It is easy to predict the presence of nuts in some foods, while in some others, like...

What is lupus? Lupus is a chronic autoimmune disorder. If you have an autoimmune disorder, your immune system mistakenly attacks the healthy cells in your body, which causes inflammation. Symptoms include extreme fatigue, hair loss, skin rashes, cognitive dysfunction, severe muscle and joint pain,...

Sinus infection or sinusitis can be diagnosed by a qualified medical practitioner after a series of tests and examinations. Most cases are actually diagnosed based on the medical history of the patient and the examination of the doctor. This is because the more effective procedures like the MRI and...