Human Health Review

What is the main defense against viral diseases?

• Antibiotics

• Pesticides

• Vaccination

• Epidemiology

Pathogens can be spread by

• breathing contaminated air.

• drinking contaminated water

• secondary hosts.

• All of the above.

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Which of the following is an emerging virus?

• measles

• diphtheria

• Dengue fever

• Schistosomiasis

_________________ is the vector that may spread disease such as malaria or Dengue infection.

• Rodents

• Mosquitoes

• Humans

• Water

Toxicology is used to determine

• the classification of a pathogen.

• the vectors of a disease.

• how poisonous a substance is.

• what emerging viruses cause disease.

Which of the following substances is a heavy metal, pollutant that is associated with nerve damage?

• organophosphates

• PCBs

• lead

• hormones

People may be infected by ___________ when they improperly handle or consume contaminated meat.

• Salmonella

• malaria

• Dengue fever

• influenza

People in developing nations are more likely than people in developed nations to die from

• cancer

• diabetes

• heart disease

• environmental issues

Which of the following is an infectious disease that is spread through drinking water polluted by human feces?

• Dysentery

• Malaria

• Influenza

• Hanta virus

The environment is an important factor in the spread of cholera and dysentery because

• air can carry the pathogens.

• water provides a habitat in which the pathogens breed.

• the pathogens reproduce in soil.

• the disease is transmitted by mosquitoes.