Acute lower respiratory tract infections and respiratory syncytial virus in infants in Guinea-Bissau: A beneficial effect of BCG vaccination for girls: Community based case-control study

Lone Graff Stensballe*, Ernesto Nante, Inge Panum Jensen, Poul Erik Kofoed, Anja Poulsen, Henrik Jensen, Melanie Newport, Arnaud Marchant, Peter Aaby

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Among measles unvaccinated infants in Guinea-Bissau, we tested whether case infants with acute lower respiratory tract infection (ALRI), especially ALRI caused by respiratory syncytial virus (RSV), were more likely to be Bacille Calmette Guérin (BCG)-unvaccinated and to have no scar after BCG vaccination than were control infants without symptoms of ALRI. Three hundred and eighty-six case infants with ALRI were identified at a paediatric clinic (N = 84), a health centre (N = 82), and in a community morbidity surveillance system (N = 220). Control infants were matched on sex, age, and district and were also measles unvaccinated. In ALRI case infants, the adjusted OR of being BCG unvaccinated was 2.87 (1.31-6.32), 1.72 (0.48-6.19) in boys and 4.45 (1.48-13.4) in girls. Among BCG vaccinated ALRI case infants, the adjusted OR of having no BCG scar was 1.54 (0.86-2.75), 0.93 (0.45-1.91) in boys and 2.70 (1.21-6.02) in girls. In ALRI case infants with RSV infection, similar trends were observed. BCG vaccination may have a non-targeted protective effect against ALRI, the effect being most marked in girls.

Original languageEnglish
JournalVaccine
Volume23
Issue number10
Pages (from-to)1251-1257
Number of pages7
ISSN0264-410X
DOIs
Publication statusPublished - 26. Jan 2005

Keywords

  • Acute lower respiratory tract infection (ALRI)
  • Bacille Calmette Guérin vaccine (BCG)
  • Respiratory syncytial virus (RSV)

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