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The Worst Mistake in Human History Some historians believe development of agriculture was a “mistake” in human history with regard to the emergence and spread of infectious diseases. Which factors below would contribute to the emergence and spread of infectious diseases following development of agriculture? a. people change from hunter-gatherer lifestyles to sedentary lifestyles (they stop moving from place to place) in towns and cities b. concentration of people in towns and cities increases spread of infectious diseases c. accumulation of human feces in towns and cities increases spread of pathogens via “fecal-oral” transmission d. increased food production triggered “population explosions” e. domestication of animals for work, food and fiber brought humans in close contact with animal pathogens which could infect humans  

Some people are the descendants of people who survived great epidemics of Bubonic Plague (or smallpox) centuries earlier. It is believed these ancestors who survived these epidemics had a mutation in their cells and consequently carried a mutant receptor to which the Plague pathogen (or smallpox pathogen) could not bind. This mutation was passed down through generation, making descendants of these survivors now also resistant to _________

________was the introduction of the variola/smallpox virus from ground-up smallpox lesion crusts or from fluid from smallpox vesicles into the nose or into the skin. This was an early way to trigger immunity against smallpox and prevent subsequent potentially lethal smallpox natural infections.

The most common location for salivary gland tumors is the:

Bacteriophage have been successfully used to________: a. treat antibiotic-resistant bacterial pathogens in humans b. decrease carriage of potentially zoonotic bacteria in food animals (e.g. Listeria monocytogenes, Salmonella, E. coli O157:H7). c. kill pathogenic bacteria contaminating food (e.g. Listeria) d. all of the above

The ability of a microbe to invade another organism and cause harm is called_____________ and was proved by ______________ using “4 postulates”:

Which of the following is (are) oral manifestations of Scarlet Fever?

Match the stages of Syphilis with the oral lesion:

What is the most common oral and perioral viral infection?

What is the name of the disorder characterized by an overproduction of abnormal white blood cells?