Fifteen students from a local elementary school developed hepatitis A. The source of the infection was traced to a contaminated well that supplies drinking water to one of the school's three water fountains. This is an example of a
1. Common (point source) epidemic.
2. Propagated epidemic.
3. Vectorborne infection.
4. Zoonosis.
Question 2
Bobby Jones exposed all of the children in Miss Smith's kindergarten class to chickenpox in early February. By the end of April, more than 30 of the students in the school had come down with chickenpox. This is an example of a
1. Common (point source) epidemic.
2. Propagated outbreak.
3. Vectorborne infection.
4. Zoonosis.
Gangrene of the toes and foot as a result of an infection often means eventual amputation.
Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
Geographic distribution of hepatitis A prevalence (anti-HAV-antibody), 2005.
Hives is a general contraindication in the acute phase and a local contraindication in the subacute ...
Remove cold source, and check the knee for changes. Notice skin color and changes in swelling around ...