Compared with HEU, PHIV children were significantly less likely to be immune to vaccine-preventable diseases when fully vaccinated. Strategies to increase immunity against vaccine-preventable diseases among PHIV require further study.
Objective
To describe Group B Streptococcus (GBS) prevention policies at 12 Latin American sites participating in the NICHD (Eunice Kennedy Shriver National Institute of Child Health and Human Development) International Site Development Initiative (NISDI) Longitudinal Study in Latin American Countries (LILAC) and to determine rates of rectovaginal colonization and GBS-related disease among HIV-infected pregnant women and their infants.
Methods
Site surveys were used to assess prevention policies and practices administered cross-sectionally during 2010. Data collected in NISDI from 2008 to 2010 regarding HIV-infected pregnant women were used to determine rates of colonization and GBS-related disease.
Results
Of the 9 sites with a GBS prevention policy, 7 performed routine rectovaginal screening for GBS. Of the 401 women included in the NISDI study, 56.9% were at sites that screened. The GBS colonization rate was 8.3% (19/228 women; 95% confidence interval [CI], 5.1%–12.7%). Disease related to GBS occurred in 0.5% of the participants (2/401 women; 95% CI, 0.1%–1.8%); however, no GBS-related disease was reported among the 398 infants (95% CI, 0.0%–0.9%).
Conclusion
Improved efforts to implement prevention policies and continued surveillance for GBS are needed to understand the impact of GBS among HIV-infected pregnant women and their infants in Latin America.
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