AsianScientist (Dec. 17, 2015) – By Dalmeet Singh Chawla – Africa and Asia have the highest health burden from foodborne diseases of any region, according to the World Health Organization’s (WHO) first ever estimates of the global impact of such diseases. The report compiles the findings of an expert group the WHO set up to examine foodborne disease, published in PLOS Medicine in December 2015.
Eating food contaminated by bacteria, viruses, parasites, toxins and chemicals kills around 420,000 people a year around the world, including 125,000 children under five, according to the report. The report estimates the incidence, mortality and disease burden caused by 31 foodborne hazards.
It reveals that the largest health impact is in Africa, which loses up to 1,300 disability-adjusted life years (DALYs) per 100,000 people. A DALY is equivalent to one lost year of healthy life.
Asia comes next, losing up to 710 DALYs per 100,000 people. In contrast, Canada, Cuba and the United States lose just 35 DALYs per 100,000 people. About 600 million people fall ill every year from eating unsafe food, the report reveals.
Diarrheal diseases, such as those caused by E.coli and salmonella, are responsible for half of global deaths from foodborne illnesses, the report finds. The situation is worst in Africa, where 70 percent of food—related deaths are caused by bacterial diarrhea because food safety standards are not properly enforced, the WHO said.
“Almost all foodborne diseases are preventable, but some diseases need intervention at the production side and others at the consumption side,” said Kazuaki Miyagishima, director of food safety at the WHO, and author of the report foreword. “So everyone has a role to play.”
However, few people who get food poisoning officially report their case by visiting a doctor, notes Miyagishima. Therefore, the problem is like “fighting a monster whose face nobody has seen.”
Karen Keddy, a bacteriologist at the National Institute for Communicable Diseases in South Africa, said that one factor that may distort the figures is that children are more likely to be taken to hospitals than adults when they get sick so their cases may be recorded more.
“Funding is more easily available to study diarrhea in the under-five population, so these cases are more frequently counted,” Keddy added.
Miyagishima said that many developing countries lack the technology and infrastructure to provide citizens with clean water to prepare food hygienically. He also acknowledged a lack of food research laboratories as a barrier to food safety improvements, along with food safety education.
The fridge, for example, helps keep food safe for longer, but has also created a ‘myth’ in some peoples’ minds that food kept in one is always safe to eat, he explained.
Mohamed Sheriff, technical officer for food safety at the WHO’s African office, said: “The regional estimates within this report are intended to enable countries to fill many of their data gaps and begin to translate these into food safety policies at a national level.”
To help policymakers make decisions, the WHO has also created an interactive online map showing which foodborne diseases most affect different regions.
The report can be found at: Havelaar et al. (2015) World Health Organization Global Estimates and Regional Comparisons of the Burden of Foodborne Disease in 2010.
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Source: SciDevNet; Photo: David Boté Estrada/Flickr/CC.
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