Dr. Jenna N. Derr M.D.

Pertussis is an infection of the upper respiratory system. The disease is highly contagious and spreads through the coughing and sneezing of an infected individual. This highly contagious and airborne disease is caused by the bacteria called Bordetella pertussis. The symptoms of pertussis typically...

What is encopresis?Encopresis is a disorder characterized by the involuntary leaking of poop due to chronic constipation. This disorder is usually observed in children 4 years old and above.In encopresis, the wall and the nerves of the bowel are stretched when poop is held on for a longer time. This...

A risk factor could be any one of numerous influences that make you prone to developing cancer. There are unavoidable factors that you have no protection against. Some of these are a family history of genetically inherited traits, and age and gender issues. There are wholly avoidable factors such...

What is Lightheadedness?Older adults commonly complain about feeling woozy, lightheaded, or a little faint.The reason may not be something dangerous, but still, if you feel lightheaded, it is better to be careful. Serious injuries due to a fall can result due to lightheadedness even though there...

Why are my tonsils swollen?The human body is a marvelous creation--a true work of art. It has the infrastructure to keep itself safe from harmful bacteria and viruses, and it has the ability to heal itself. One of these infrastructures is the tonsils. These are lymph nodes located at the back of the...

What are vaccine exemptions?There are state laws that establish compulsory vaccination for school children both studying in public and private schools as well as daycare facilities. However, certain exemptions may be offered for religious and personal or conscientious reasons in some states. What...