Select all of the statements that apply to healthcare-associated or nosocomial pneumonia to test your understanding of the differences between healthcare-associated and community-acquired pneumonia.

Healthcare associated or nosocomial pneumonia are acquired by non-hospitalized patients in hospitals or other health care facilities. Pneumonia are poly-microbial in origin and the causative agents are viruses, bacteria and fungi. In nosocomial pneumonia, bacteria enter the lower respiratory tract due to mechanical ventilation. Meanwhile, persons in general population experience community-acquired pneumonia.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

me and my friend did 2