Diarrhoeal disease

Breastfeeding in a Global Context: Epidemiology, Impact, and Future Directions

INTRODUCTION

More than 98% of infant deaths occur in low- and middle-income countries (LMICs). Breastfeeding improves infant survival and protects against certain illnesses, such as diarrhea and pneumonia, which are leading causes of deaths in those <5 years of age in LMICs. The World Health Organization (WHO) recommends early initiation of breastfeeding within 1 hour of birth, exclusive breastfeeding up to 6 months of age, and continued breastfeeding up to 2 years of age. However, fewer than half of infants in LMICs are breastfed optimally to these standards. The objectives of this article are to describe the global epidemiology and health benefits of breastfeeding with particular focus on LMICs.

METHODS

We searched PubMed to identify original research articles on breastfeeding in LMICs and reviews related to the benefits of breastfeeding, with particular focus on articles published in the past 5 years. We used reports and data published by the WHO and the United Nations Children's Fund (UNICEF) related to global breastfeeding rates, targets, and programmatic initiatives. We used the Lives Saved Tool to estimate mortality related to breastfeeding practices.

FINDINGS

Less than half of infants globally receive early, exclusive, or continued breastfeeding. Certain high-risk groups, such as premature or HIV-exposed infants, face particular challenges and benefits related to breastfeeding. The WHO, UNICEF, and other global partners have developed a multipronged strategy to promote global breastfeeding, ranging from government-level advocacy to grassroots community support groups. Using the Lives Saved Tool, we estimate that nearly 200,000 lives of those <5 years of age could be saved in LMICs from 2020 to 2030 if early, exclusive, and continued breastfeeding rates were linearly increased from current rates to meet the WHO 2030 goals of 60% to 80% coverage. If this goal were exceeded and near-universal coverage were achieved, the number of lives would increase even further such that >820,000 lives per year could potentially be saved by universal breastfeeding. In this review, we delineate the health and economic benefit of breastfeeding in LMICs, discuss breastfeeding epidemiology in the global context, and describe targeted strategies to improve breastfeeding uptake.

Plesiomonas shigelloides Revisited

After many years in the family Vibrionaceae, the genus Plesiomonas, represented by a single species, P. shigelloides, currently resides in the family Enterobacteriaceae, although its most appropriate phylogenetic position may yet to be determined. Common environmental reservoirs for plesiomonads include freshwater ecosystems and estuaries and inhabitants of these aquatic environs. Long suspected as being an etiologic agent of bacterial gastroenteritis, convincing evidence supporting this conclusion has accumulated over the past 2 decades in the form of a series of foodborne outbreaks solely or partially attributable to P. shigelloides. The prevalence of P. shigelloides enteritis varies considerably, with higher rates reported from Southeast Asia and Africa and lower numbers from North America and Europe. Reasons for these differences may include hygiene conditions, dietary habits, regional occupations, or other unknown factors. Other human illnesses caused by P. shigelloides include septicemia and central nervous system disease, eye infections, and a variety of miscellaneous ailments. For years, recognizable virulence factors potentially associated with P. shigelloides pathogenicity were lacking; however, several good candidates now have been reported, including a cytotoxic hemolysin, iron acquisition systems, and lipopolysaccharide. While P. shigelloides is easy to identify biochemically, it is often overlooked in stool samples due to its smaller colony size or relatively low prevalence in gastrointestinal samples. However, one FDA-approved PCR-based culture-independent diagnostic test system to detect multiple enteropathogens (FilmArray) includes P. shigelloides on its panel. Plesiomonads produce β-lactamases but are typically susceptible to many first-line antimicrobial agents, including quinolones and carbapenems.

Trends of reported foodborne diseases at the Ridge Hospital, Accra, Ghana: a retrospective review of routine data from 2009-2013

Background

There are over 250 foodborne diseases and are of growing public health concern worldwide. The distribution of these diseases varies from one locality to the other. Foodborne diseases come about as a result of ingestion of food contaminated with microorganisms or chemicals. The most common clinical presentation of foodborne disease takes the form of gastrointestinal symptoms; although other systems of the body can also be affected and represents a considerable burden of disability as well as mortality. The current study was carried out with the aim of describing the trends and patterns of foodborne diseases reported at the Ridge Hospital in Accra, Ghana to serve as the first step towards understanding the profile of foodborne diseases in Accra. The study could then serve as a guide in the establishment of a sentinel site or surveillance system for foodborne diseases.

Methods

A retrospective review of routine data kept on patients who visited the Ridge Hospital from January 2009 to December 2013 was conducted to describe the trends and patterns of foodborne diseases reported at the facility. All available health records were reviewed and data on foodborne diseases extracted and analysed by age group, sex, season and geographical location within the catchment area of the hospital.

Results

The review showed significant variation in the annual reported cases of foodborne diseases [2009 = 11.5 % (118/1058); 2010 = 2.30 % (22/956); 2011 = 17.45 % (608/3485); 2012 = 7.98 % (498/6315) and 2013 = 2.56 % (345/13458)] p < 0.05. Significant seasonal variations were also observed [early dry season = 10.2 % (322/3142); late dry season = 24.4 % (909/3728); early wet season = 4.3 % (107/2494); late wet season = 6.3 % (256/4094). There were monthly variations also during the period (p < 0.001) except for the year 2010 (p = 0.428). The highest prevalence was reported during the late dry season (February–April). The most affected age group was those aged between 15 and 34 years who had significantly more infections in 2012 and 2013 than the other age groups (p < 0.001). Overall many more males than females reported of food borne diseases (p < 0.001).

Conclusion

The commonly reported foodborne diseases at the Ridge Hospital were: typhoid fever, dysentery, cholera and viral hepatitis. These diseases were found to be very seasonal with peaks at the onset of the rainy season.

Electronic supplementary material

The online version of this article (doi:10.1186/s12879-016-1472-8) contains supplementary material, which is available to authorized users.