Effectiveness of influenza vaccination in elderly outpatients in Säo Paulo city, Brazil
Rev. Inst. Med. Trop. Säo Paulo
;
43(6): 317-320, Nov.-Dec. 2001. tab
Article
in English
| LILACS
| ID: lil-303048
ABSTRACT
To investigate the effectiveness of the influenza vaccine in a population of elderly outpatients, we compared the occurrence and frequency of influenza like illness (ILI), respiratory illness and hospitalization in vaccinated and non-vaccinated subjects. All the outcomes were clinically defined. The two groups were similar with respect to demographics, health situation and habits. The influenza vaccine contributed to the protection of the elderly investigated, since the vaccinated subjects referred a significantly lower number of ILI than the non-vaccinated. There is a need for more studies about the effectiveness of the influenza vaccine in our country in elderly and other groups of our population
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Influenza Vaccines
/
Influenza, Human
Type of study:
Observational study
Limits:
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Rev. Inst. Med. Trop. Säo Paulo
Journal subject:
Tropical Medicine
Year:
2001
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de Säo Paulo/BR
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