Chapter 19, Problem 3TMW

Summary Introduction

To tell:

The reason that most cases of Rocky Mountain spotted fever occur in May, June, and July.

Introduction:

Rickettsia rickettsii causes “Rocky Mountain spotted fever”, the most reported and severe fever rickettsiosis. Rickettsia rickettsii is typically dormant in salivary glands of its vector tick. It is small, aerobic, nonmotile, intracellular, Gram-negative bacterium that has a peptidoglycan cell wall and outer lipopolysaccharide membrane.