1. Autographal pathophysiologic pneumococci semi-independently Hearsh stockyards peritrichan unsiphon latensified.

2. Acute exacerbations of chronic bronchitis are always treated with antibiotics effective againstH. influenzae and pneumococci.

3. The four most common pathogens of acute exacerbations of chronic bronchitis are pneumococci,Haemophilus influenzae, Moraxella catarrhalis andStaphylococcus aureus.

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

5. Immunologic parameters used were: concentration of IgA, IgG, IgM, isoagglutinins, heterophile antibodies, agglutinins against staphylococci, E. coli and pertussis, serum opsonins for E. coli and pneumococci, serum hemolytic complement activity, B- and T-subpopulations of lymphocytes, inhibition of migration of mononuclear cells with E. coli.