(1) Pneumococci can be present in the respiratory tract without causing any problems.

(2) Observing the inhibition effect of silver nitrate on Pneumococci and Streptococci by bacterium culture.

(3) In 1967 there were the first report of pneumococci that were relatively insensitive to penicillin and by 1981, there were cases of multiple drug resistance.

(4) Pneumococci are frequently isolated from the nasopharynx of 40% healthy people, and few people exhibit symptom.

(5) Community prevalence of multidrug-resistant strains of pneumococci , and of invasive community-based methicillin-resistant Staphylococcus aureus, is increasing.

(6) Objective To investigate antibiotic resistance of Streptococcus pneumoniae of clinical isolates in Hangzhou and molecular epidemiology of penicillin-resistant pneumococci strains.

(7) Unlike the affected children, the animals were susceptible to a large number of pathogens, not just pneumococci and staphylococci.