While the flu virus was evolving crazily, Shen Qiang had handed over the pneumococcus to Plague Source.
Pneumococcus.
The disease primarily causes lobar pneumonia, with 75% in adults caused by types 1, 2, 3, 4, 5, 7, 8, 9, 12, over half of which are types 1, 2, 3. Type 3 produces a large amount of capsular substance, has strong virulence, and a high mortality rate. In children, types 6, 14, 19, and 23 pneumococcus infections are most common. It can lead to complications like pleurisy, pyothorax, otitis media, meningitis, and septicemia.
However, the incidence of this bacterium is not particularly high, mainly because, in normal individuals, pneumococcus is often present in the oral cavity and nasopharyngeal area, generally only in a carrier state.
It only causes disease when immunity is compromised, especially after respiratory viral infections or in infants and old, weakened individuals who are more susceptible to lung infections.
