The hygiene hypothesis predicts that the lowest levels of asthma should occur in people living in
A) poor rural families in developing countries.
B) wealthy families in developing countries.
C) poor urban families in developed countries.
D) wealthy families in developed countries.
Question 2
Examining an old abandoned home several months after a flood, a relief worker suddenly experiences difficulty breathing. At the hospital, she learns that she experienced
A) a chronic respiratory illness, tuberculosis, more common in the developed world.
B) a chronic respiratory illness, malaria, more common in the developing world.
C) an acute respiratory illness, asthma, more common in the developed world.
D) an acute respiratory illness, schistosomiasis, more common in the developing world.
Photograph of an occupational therapist assisting a patient with learning independence in activities
Changes in bronchioles during an asthma attack: (A) normal bronchiole and (B) in asthma attack.
Relationship between levels of COHb in blood and concentration of CO in the surrounding air
Gurung people of Nepal
Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes
The Effects of Asthma on the Bronchioles