1. Trypanosoma brucei
• Trypanosoma brucei is a parasite in Kingdom
Pro0sta
• Can be divided into two subspecies:
T. brucei qambiense and T. brucei rhodesiense Photo Credit: http://
www.pnas.org/content/100/3/
• Organisms are slender with a wavy membrane, F1.medium.gif
protruding flagellum, and visible nucleus
• Causes disease “African Sleeping Sickness”
• TransmiEed to humans through the Tsetse Fly (only found in
Africa) and infects the blood ~ 70,000 cases per year, larger
epidemics occur
• Symptoms include fever, enlarged spleen, swollen lymph
nodes, joint pains, and more serious problems such as sleep
disorders, coma, and death
• Treatment includes Suramin and Melarsoprol

2. Rubella Virus
• Included in the virus family Togaviridae
• Single‐stranded RNA with a polyhedral capsid,
surrounded by a lipoprotein envelope Photo Credit: http://
www.mayoclinic.com/health/
• Symptoms of Rubella Virus last 2‐3 days medical/IM01794
• Symptoms include slight fever (102 degrees F), inflamed, red
eyes, rash that spreads over the body, headachesThere is no
treatment for Rubella Virus
• Rubella Virus must run its course throughout the body
• Most children are given the vaccine (MMR‐ measles‐mumps‐
rubella) in two doses within their childhood years
– Fewer than 300 cases per year, periodic outbreaks

3. Sarcoptes scabiei
• Kingdom: Animalia Parasi0c
Arthropod
• This microscopic eight legged mite
causes the skin disease Sarcop0c
mange (scabies).
• Symptoms: severe itching especially depts.washington.edu
at night, red blisters, and red
irregular burrow tracks.
• Es0mated 1 million cases in US
annually (old sta0s0cs)
• Highly contagious, can be caught
from physical contact with someone
infected, a domes0cated/wild
animal infected, and fields.
Treatment: Lo0ons and oral
medica0ons
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