Exam 29: a Special Topic: Infectious Disease

A disease or condition with clinically distinct symptoms,whose incidence has increased,especially in the past two decades,is called ________.

A patient developed mononucleosis caused by a virus during his early teen years but then did not exhibit any signs of the condition for many years.He then had a bad traffic accident at age 39 and had mononucleosis again,although he had not been exposed to anyone carrying the causative virus.His infected cells were rapidly releasing new viruses.The virus is exhibiting the following effect.

In the 1950s there was a large outbreak of Epstein-Barr virus in certain parts of Africa.Shortly thereafter,in the same areas there was a large upswing in the incidence of Burkitt's lymphoma,a cancer.What characteristic was that virus demonstrating?

Product recalls on frozen hamburger are not uncommon during any given year.The meat packing industry can experience problems when processing centers accidentally introduce this fecal bacterium into ground meat.What organism is commonly found to be the culprit?

Vibrio comma causes Asiatic cholera.It has a corkscrew shape so we would say it has this form.

________ are made by certain pathogens like Staphylococcus,Salmonella,Escherichia coli,and Clostridium botulinum.These substances often travel in the bloodstream and cause disease symptoms.