Maternal colonization with Streptococcus agalactiae and associated stillbirth and neonatal disease in coastal Kenya.

Streptococcus agalactiae (group B streptococcus, GBS) causes neonatal disease and stillbirth, but its burden in sub-Saharan Africa is uncertain. We assessed maternal recto-vaginal GBS colonization (7,967 women), stillbirth and neonatal disease. Whole-genome sequencing was used to determine serotypes, sequence types and phylogeny. We found low maternal GBS colonization prevalence (934/7,967, 12%), but comparatively high incidence of GBS-associated stillbirth and early onset neonatal disease (EOD) in hospital (0.91 (0.25-2.3)/1,000 births and 0.76 (0.25-1.77)/1,000 live births, respectively). However, using a population denominator, EOD incidence was considerably reduced (0.13 (0.07-0.21)/1,000 live births). Treated cases of EOD had very high case fatality (17/36, 47%), especially within 24 h of birth, making under-ascertainment of community-born cases highly likely, both here and in similar facility-based studies. Maternal GBS colonization was less common in women with low socio-economic status, HIV infection and undernutrition, but when GBS-colonized, they were more probably colonized by the most virulent clone, CC17. CC17 accounted for 267/915 (29%) of maternal colonizing (265/267 (99%) serotype III; 2/267 (0.7%) serotype IV) and 51/73 (70%) of neonatal disease cases (all serotype III). Trivalent (Ia/II/III) and pentavalent (Ia/Ib/II/III/V) vaccines would cover 71/73 (97%) and 72/73 (99%) of disease-causing serotypes, respectively. Serotype IV should be considered for inclusion, with evidence of capsular switching in CC17 strains.

"Wamepotea" (they have become lost): outcomes of HIV-positive and HIV-exposed children lost to follow-up from a large HIV treatment program in western Kenya.

OBJECTIVE: The objective of this study was to identify the vital status and reasons for children becoming loss to follow-up (LTFU) from a large program in western Kenya. METHODS: This was a prospective evaluation of a random sample of 30% of HIV-exposed and HIV-positive children LTFU from either an urban or rural HIV Academic Model Providing Access to Healthcare clinic. LTFU is defined as absence from clinic for >6 months if on combination antiretroviral therapy and > 12 months if not. Experienced community health workers were engaged to locate them. RESULTS: There were 97 children sampled (78 urban, 19 rural). Of these, 82% were located (78% urban, 100% rural). Among the HIV positive, 16% of the children were deceased, and 16% had not returned to clinic because of disclosure issues/discrimination in the family or community. Among the HIV exposed, 30% never returned to care because their guardians either had not disclosed their own HIV status or were afraid of family/community stigma related to their HIV status or that of the child. Among children whose HIV status was unknown, 29% of those found had actually died, and disclosure/discrimination accounted for 14% of the reasons for becoming LTFU. Other reasons included believing the child was healed by faith or through the use of traditional medicine (7%), transport costs (6%), and transferring care to other programs or clinics (8%). CONCLUSION: After locating >80% of the children in our sample, we identified that mortality and disclosure issues including fear of family or community discrimination were the most important reasons why these children became LTFU.