Assessing microbiological risks in food

The contamination of food by microbial agents is a worldwide public health concern. Most countries have documented significant increases in the incidence of diseases caused by microorganisms in food over the past few decades. Microbial hazards in food include bacteria such as Salmonella, viruses such as Norovirus, parasites such as trematodes as well as prions. Diarrhoeal diseases are the most common illnesses resulting from the consumption of contaminated food, causing 550 million people to fall ill and 230 000 deaths every year. In addition, diarrhoeal diseases may cause malnutrition and stunting, adding to the amount of Disability-Adjusted Life Years (DALYs) resulting from the consumption of contaminated food.

WHO develops scientific risk assessments, guidelines for risk management and risk communication messages for all stakeholders, including the end users, to assist Member States to improve their capacity to prevent and control foodborne diseases.

1 in 10 people

fall ill

after eating contaminated food worldwide

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US$ 110 billion

lost each year

in productivity and medical expenses resulting from unsafe food in low- and middle income countries

World Bank report

420 000 people

die every year

due to eating contaminated food globally, of which 125 000 are children under 5 years of age.

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Our work

Food Handling

JEMRA is an international scientific expert group administered jointly by the Food and Agriculture Organization of the United Nations (FAO) and WHO. JEMRA provides scientific risk assessment for selected pathogens to the Codex Alimentarius Commission, develops guidelines for risk assessments and provides expert advice on risk management.

JEMRA expert roster

JEMRA is tasked with the evaluation of different aspects of microbiological hazards in the food supply. This roster consists of scientific experts who have submitted applications in response to public calls for experts on Risk Assessment of Microbiological Hazards related to food safety. The applications were reviewed by the FAO and WHO Secretariats and by an external referee, and selections made on the basis of the criteria outlined in the call for experts. Scientists of the roster will be considered for future meetings of JEMRA according to expertise required for the respective meetings.

JEMRA expert roster 2018-2022

 

Microbiological Risk Assessment series

 

Publications

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Toxicological evaluation of certain veterinary drug residues in food: prepared by the ninety-eighth meeting of the Joint FAO/WHO Expert Committee on Food Additives (‎JECFA)

The monographs contained in this volume were prepared at the ninety-eighth meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA), which...

Use of lower-sodium salt substitutes: WHO guideline 

This guideline provides evidence-informed guidance on the use of lower-sodium salt substitutes (LSSS). The recommendation in this guideline can be used...

In brief: risk assessment of food allergens: exemptions from mandatory food allergen declaration

The Risk Assessment of Food Allergens Part 4: Establishing Exemptions from Mandatory Declaration for Priority Food Allergens recommends a risk-based framework...

In brief: risk assessment of food allergens: food allergen reference doses

The Risk Assessment of Food Allergens Part 2: Review and Establish Threshold Levels in Foods for the Priority Allergens provides reference doses (RfDs)...

In brief: risk assessment of food allergens: precautionary allergen labelling (‎PAL)‎

The Risk Assessment of Food Allergens Part 3: Review and Establish Precautionary Labelling (PAL) in Foods of the Priority Allergens provides a structured,...

In brief: risk assessment of food allergens: priority food allergens

The Risk Assessment of Food Allergens Part 1: Review and Validation of the Codex Alimentarius Priority Allergen List Through Risk Assessment provides a...

Risk assessment of Listeria monocytogenes in foods: part 1: formal models: meeting report

In response to a request from the 52nd Session of the Codex Committee on Food Hygiene (CCFH), the Joint FAO/WHO Expert Meeting on Microbiological Risk...

Microbiological risk assessment of viruses in foods: part 1: food attribution, analytical methods and indicators: meeting report

In response to a request from the 53rd Session of the Codex Committee on Food Hygiene (CCFH), the Joint FAO/WHO Expert Meeting on Microbiological Risk...

Documents

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1st meeting on optimal mistake of animal souce foods - summary and conclusions pub cover

The first World Health Organization (WHO) Expert Meeting on optimal intake of animal-source foods was convened to launch the work that will lead to recommendations...

JEMRA viruses in foods part 2 pub cover

The Joint FAO/WHO Expert Meeting on Microbiological Risk Assessment (JEMRA) on microbiological risk assessment of viruses in foods, Part 2 prevention and...