AP BIOLOGY

Detailed explanation-1: -Pneumonia can be spread in several ways. The viruses and bacteria that are commonly found in a child’s nose or throat can infect the lungs if they are inhaled. They may also spread via air-borne droplets from a cough or sneeze. In addition, pneumonia may spread through blood, especially during and shortly after birth.

Detailed explanation-2: -Common causes of bacterial pneumonia are Streptococcus pneumoniae (pneumococcus) and, especially in kids, Mycoplasma pneumoniae. The bacteria and viruses that most commonly cause pneumonia in the community are different from those in healthcare settings.

Detailed explanation-3: -Pneumonia is a serious infection of the lungs caused by various bacteria, viruses and fungi. It can be mild and sometimes even prove fatal. It affects people with weakened immune systems, older people above 65 years of age, infants and young children. Pneumonia can be bacterial, viral or mycoplasmic.