Background
Resistance to all first-line antibiotics necessitates the use of less effective or more toxic “reserve” agents Gram-negative bloodstream infections (GNBSIs) harboring such difficult-to-treat resistance (DTR) may have higher mortality than phenotypes that allow for ≥1 active first-line antibiotic

Difficult-to-Treat Resistance in Gram-negative Bacteremia at 173 US Hospitals: Retrospective Cohort Analysis of Prevalence, Predictors, and Outcome of Resistance to All First-line Agents.

Impact of rotavirus vaccines in Sub-Saharan African countries.

Diarrhea is a significant pediatric public health concern globally and places a significant burden on healthcare systems. In resource-limited settings, the problems of diarrhea could be worse than reported. Continuously monitoring and understanding the changing epidemiology of diarrhea, including risk factors, remain an important aspect necessary to design effective public health interventions to reduce the incidence, outcomes and strain on healthcare resources caused by diarrheal illness. We, therefore, undertook this study to understand the factors associated with diarrhea as well as describe determinants for seeking medical treatment in children under-five in Zimbabwe using the Zimbabwe Demographic and Health Survey 2015-2016 Data. Children with recent diarrhea were on average younger (mean age 22 months), compared to those who did not have an episode of diarrhea (mean age 30 months) p = .001. Incidence of recent diarrhea was lower among female children compared to their male counterparts (16% vs. 19%), p = .013. Incidence of diarrhea decreased with increasing maternal education level and so was the same for increasing wealth quintile. Those with unimproved sources of drinking water had a higher incidence of diarrhea. The wealth quintile remained the only factor associated with seeking medical attention for a recent diarrhea episode among children less than 6 years, with those in the highest wealth quintile being 2.49 times likely to do so, p = .031. The results are useful in informing pediatric public health policies and strategies for them to be successful in significantly reducing the incidence, morbidity, mortality and significant healthcare costs and burden to society associated with caring for children with diarrheal illnesses.

Associations of diarrhea episodes and seeking medical treatment among children under five years: Insights from the Zimbabwe Demographic Health Survey (2015-2016).

Background In Zambia, before rotavirus vaccine introduction, the virus accounted for about 10 million episodes of diarrhoea, 63 000 hospitalisations and 15 000 deaths in 2015, making diarrhoea the third leading cause of death after pneumonia and malaria. In Zambia, despite the introduction of the vaccine acute diarrhoea due to rotaviruses has continued to affect children aged five years and below. This study aimed to characterise the rotavirus genotypes which were responsible for diarrhoeal infections in vaccinated infants aged 2 to 12 months and to determine the relationship between rotavirus strains and the severity of diarrhoea in 2016. Methods Stool samples from infants aged 2 to 12 months who presented to the hospital with acute diarrhoea of three or more episodes in 24 hours were tested for group A rotavirus. All positive specimens that had enough sample were genotyped using reverse transcriptase Polymerase Chain Reaction (RT-PCR). A 20-point Vesikari clinical score between 1-5 was considered as mild, 6-10 as moderate and greater or equal to 11 as severe. Results A total of 424 stool specimens were tested of which 153 (36%, 95% CI 31.5% to 40.9%) were positive for VP6 rotavirus antigen. The age-specific rotavirus infections decreased significantly (p = 0.041) from 2-4 months, 32.0% (49/118) followed by a 38.8% (70/181) infection rate in the 5-8 months' category and subsequently dropped in the infants aged 9-12 months with a positivity rate of 27.2%. 38.5% of infants who received a single dose, 34.5% of those who received a complete dose and 45.2% (19/42) of the unvaccinated tested positive for rotavirus. The predominant rotavirus genotypes included G2P[6] 36%, G1P[8] 32%, mixed infections 19%, G2P[4] 6%, G1P[6] 4% and G9P[6] 3%. Discussion and conclusion Results suggest breakthrough infection of heterotypic strains (G2P[6] (36%), homotypic, G1P[8] (32%) and mixed infections (19%) raises concerns about the effects of the vaccination on the rotavirus diversity, considering the selective pressure that rotavirus vaccines could exert on viral populations. This data indicates that the rotavirus vaccine has generally reduced the severity of diarrhoea despite the detection of the virus strains.

/pdf/rotavirus-breakthrough-infections-responsible-for-1xxwqkwrcw.pdf

Rotavirus breakthrough infections responsible for gastroenteritis in vaccinated infants who presented with acute diarrhoea at University Teaching Hospitals, Children's Hospital in 2016, in Lusaka Zambia.

Detection and evaluation of rotavirus surveillance methods as viral indicator in the aquatic environments.

Distribution of rotavirus genotypes associated with acute diarrhoea in Zimbabwean children less than five years old before and after rotavirus vaccine introduction.

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Distribution of rotavirus genotypes associated with acute diarrhoea in Zimbabwean children less than five years old before and after rotavirus vaccine introduction.