JoAnn has a cold. She is coughing up mucus (a respiratory secretion) from her lungs. JoAnn is the portal of exit
in the chain of transmission. The mucus from her cough is the
reservoir
in the chain of transmission.

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

Aperson has had a good _ of life if they are still at the age of 95.

Which one of the following causes people to go through a cycle of losing weight, gaining it back, then lose it again