W. David Colby IV MSc MD FRCPC


Malaria

What is malaria? Malaria is a serious disease that causes a fever and other flu-like symptoms. You can get it from a bite by an infected mosquito. Malaria is rare in the United States. It is found in over 90 countries around the world, mainly in Africa, Asia, Oceania, South America, and Central America. The risk of…

Haemophilus Influenzae Type B

The bacteria Haemophilus influenzae type b (Hib) can cause serious illnesses, including pneumonia (infecting the lungs), epiglottitis (infecting the tissue at the back of the throat), and meningitis (infecting the tissues around the brain and spinal cord). The Haemophilus influenzae type b vaccine has dramatically…

Life Cycle of Malaria Parasites

You get malaria from a bite by an infected mosquito. This bite injects malaria-causing parasites into your blood, where they travel to liver cells. In the liver cells, the parasites breed. The cells later burst, letting loose thousands of new parasites that go on to infect more red blood cells. Mosquitoes get malaria…

Sputum Culture

Sputum is a thick fluid made in the lungs and in the airways leading to the lungs. A sputum culture is a test to find germs (such as bacteria or a fungus ) that can cause an infection. A sample of sputum is added to a substance that promotes the growth of germs. If no germs grow, the culture is negative. If germs that…

E. Coli

E. coli is a type of bacteria that lives in the digestive tracts of humans and animals. There are many types of E. coli, and most of them are harmless. But some can cause a dangerous type of diarrhea. Others can cause a urinary tract infection.