Longer term effects of live influenza vaccine in patients with chronic pulmonary disease.
WRL 105 strain live influenza vaccine or placebo was given to patients with chronic bronchitis in a double-blind study. The twenty-one vaccinated and twenty-three placebo-treated patients made daily self-assessments of the severity of symptoms of cough, breathlessness, tightness, wheeze, and sputum production in the following 20 weeks. Symptom scores in the first 2 weeks after vaccination or treatment with placebo were used to calculate a baseline range for each patient. Comparison of symptoms in the two groups in the baseline period showed that symptoms were more often reported by vaccinated than by placebo-treated patients but the differences were not statistically significant. One patient who responded serologically to vaccination had a moderately severe influenzal illness starting on the day after vaccination. Comparison of symptom scores during the 18-week surveillance period with baseline values showed that symptoms of breathlessness, tightness, wheeze and cough were significantly more common in vaccinated than in placebo-treated patients and that antibiotic usage was more common in the vaccinated group.
D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D001991:Bronchitis / Q000150:complications*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D005500:Follow-Up Studies; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000494:pharmacology*; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control*; D008875:Middle Aged; D009975:Orthomyxoviridae / Q000276:immunology; D013997:Time Factors
D000914:Antibodies, Viral; D007252:Influenza Vaccines