W. David Colby IV MSc MD FRCPC


Garrapata del ciervo

Fuente: Public Health Image Library (PHIL). Michael L. Levin, PhD. Disponible en línea en: http://phil.cdc.gov. La garrapata del ciervo ( Ixodes scapularis ) es una de las dos clases de garrapatas en los Estados Unidos que son portadoras de las bacterias de la enfermedad de Lyme.

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…

Giardiasis (Giardia)

Giardiasis (also called giardia) is an illness caused by infection with the parasite Giardia lamblia, also known as Giardia intestinalis. Giardiasis is usually caused by drinking water that is contaminated with the parasite. In the United States, G. lamblia is most often found in untreated streams, rivers, and lakes…

Lyme Disease Test

Discusses antibody test used to detect Lyme disease. Covers two types of test (enzyme-linked immunosorbent assay and Western blot test). Covers why and how they are done. Includes info on what results mean.

Lyme Disease Rash

One symptom of Lyme disease is a red rash (called erythema migrans). The rash usually starts as a small red area and then expands over several days. The rash occurs at the site of the tick bite and usually gets bigger over time. Sometimes the rash clears in the center, so that it looks like a bull’s-eye. About half the…