Which of the following statements is true?
a. the first vaccine was developed for cowpox.
b. before jenner's vaccine, there was no prevention for smallpox.
c. travelers to other countries are often required to get special vaccinations. d. missed immunizations cannot be given at future doctor visits.

jomady. when the body perspires due to the temperature rising, trepidation, exercise, or a disease known as hyperhidrosis, then you would lose the sodium and potassium stored in your body, also known as the na+/k+-atpase enzyme.

this disease is :

* endemic (present in a defined area that is a village)

* a bacterial infection (treated with antibiotic)

* communicable by contact (by the hands)

manu-porterage is the most common mode of transmission, it transmits germs from one individual to another via the hands. this concerns infections of exogenous origin.

endemic disease, or endemic disease, refers to a disease that is constantly present in a given population, often tied to a specific geographic origin, as opposed to a pandemic that is not a sporadic disease.

antibiotics are molecules that have the property of killing (bactericidal) or limiting the spread (bacteriostatic) of bacteria.