cysticercus
1. A girl developed generalized seizures. A CT scan revealed a single brain lesion con sistent with a tumor. Biopsy of the lesion showed a cysticercus. The patient lived
in South Carolina and had never traveled outside the state. What parasite caused
her disease? How is this disease transmitted? How might it be prevented?
2. A California farmer developed a low- grade fever, myalgia, and cough. A chest Xray exam revealed an infiltrate in the lung. Microscopic examination of the sputum
revealed round, budding cells. A sputum culture grew mycelia and arthroconidia.
What organism is most likely the cause of the symptoms? What is causing the
man’s disease? How is this disease transmitted? How might it be prevented?
3. A teenaged male in California complained of remittent fever, chills, and headaches.
A blood smear revealed ring- shaped cells in his red blood cells. He was success fully treated with primaquine and chloroquine. The patient lives near the San Luis
Rey River and has no history of foreign travel, blood transfusion, or intravenous
drug use. What is the disease? How was it acquired?
4. Why are algae important in nature? How are algae, fungi and lichens related and
how is this relationship defined? Explain how the presence of algae can indicate
either pollution or productivity of a body of water.