BackgroundExclusive breastfeeding (EBF) is the optimal way to feed children during their first six months of life, having important benefits for them and their mothers. However, the proportion of Ecuadorian mothers who continue to exclusively breastfeed their infants during the recommended six-month period has been reported to remain below the World Health Organization’s goal set of 90 %. Little is known regarding factors influencing adolescent mothers to decide whether to practice EBF or not. Furthermore, there is no data about the EBF rates among adolescent mothers in Quito, Ecuador.MethodsThis cross-sectional study took place from April to November 2013 in the largest maternity ward in Quito, Ecuador (Hospital Gineco Obstétrico Isidro Ayora). Adolescent mothers parenting an infant between 6 and 24 months of age (n = 375) were interviewed using a structured questionnaire about EBF knowledge, beliefs and practices. Bivariate and multivariate analyses were used to identify the independent predictors of EBF.ResultsIn our sample, 62.9 % of adolescent mothers raising infants between 6 to 24 months of age chose EBF. Knowledge about the maternal benefits of breastfeeding and awareness of appropriate time frame for EBF were statistically associated with increasing the likelihood of choosing EBF. Adolescent mothers who were acquainted with the recommended duration of EBF were more likely to practice EBF (adjusted odds ratio (AOR) = 1.73; 95 % confidence interval (CI) 1.003, 2.98) as well as those who knew that breastfeeding is a protective factor against breast cancer (AOR = 5.40; 95 % CI 1.19, 24.56).ConclusionsAlthough adolescent mothers may be more prone to discontinuing EBF before their infants reach six months of age, the prevalence of EBF among adolescent mothers interviewed was higher than the rate reported for Ecuadorian mothers in other age groups. Our data underscores the importance of emphasizing the correct practice of BF and its benefits in breastfeeding education programs provided to Ecuadorian mothers, in order to promote the extension of breastfeeding duration to the recommended levels.

Chagas disease is the most important parasitic disease in Latin America. The causative agent, Trypanosoma cruzi, displays high genetic diversity and circulates in complex transmission cycles among domestic, peridomestic and sylvatic environments. In Ecuador, Rhodnius ecuadoriensis is known to be the major vector species implicated in T. cruzi transmission. However, across vast areas of Ecuador, little is known about T. cruzi genetic diversity in relation to different parasite transmission scenarios. Fifty-eight T. cruzi stocks from the central Ecuadorian coast, most of them derived from R. ecuadoriensis, were included in the study. All of them were genotyped as T. cruzi discrete typing unit I (DTU TcI). Analysis of 23 polymorphic microsatellite loci through neighbor joining and discriminant analysis of principal components yielded broadly congruent results and indicate genetic subdivision between sylvatic and peridomestic transmission cycles. However, both analyses also suggest that any barriers are imperfect and significant gene flow between parasite subpopulations in different habitats exists. Also consistent with moderate partition and residual gene flow between subpopulations, the fixation index (FST) was significant, but of low magnitude. Finally, the lack of private alleles in the domestic/peridomestic transmission cycle suggests the sylvatic strains constitute the ancestral population. The T. cruzi population in the central Ecuadorian coast shows moderate tendency to subdivision according to transmission cycle. However, connectivity between cycle sexists and the sylvatic T. cruzi population harbored by R. ecuadoriensis vectors appears to constitute a source from which the parasite invades human domiciles and their surroundings in this region. We discuss the implications these findings have for the planning, implementation and evaluation of local Chagas disease control interventions.

Zinc is an important mineral for biological and physiological processes. Zinc deficiency (ZD) is one of the most common micronutrient deficiencies worldwide and a crucial determinant of pregnancy outcomes and childhood development. Zinc levels and the zinc supplementation rate among lactating women have not been assessed neither in Ecuador nor in the Andean region. We conducted a pilot study including 64 mothers of infants between eight days to seven months old from a primary care center located in Conocoto, a peri-urban community of Quito, Ecuador. The mothers were interviewed and a fasting blood sample was taken to determine plasma zinc levels. The prevalence of ZD was calculated and compared with the prevalence of ZD among Ecuadorian non-pregnant non-lactating women, and the sample was analysed considering zinc supplementation during pregnancy. The prevalence of ZD among the participants was 81.3% (95% CI: 71.7–90.9), higher than the reported among non-pregnant non-lactating women (G2 = 18.2; p < 0.05). Zinc supplementation rate was 31.2%. No significant differences were found comparing the groups considering zinc supplementation. The insights obtained from this study encourage extending studies to document zinc levels and its interactions among breastfeeding women in areas with a high prevalence of ZD in order to determine the need of zinc supplementation.

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Background: Previous studies have reported an association between maternal zinc deficiency and increased risk of nonsyndromic cleft lip with or without cleft palate (NSCL/P) in offspring. A high prevalence of zinc deficiency and a high prevalence of NSCL/P have been reported in Ecuador. We postulated that mothers of infants with NSCL/P may have lower serum zinc levels than women from the general population.