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

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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Evaluation of certain veterinary drug residues in food: ninety-eighth report of the Joint FAO/WHO Expert Committee on Food Additives

The JECFA98 meeting, which was jointly hosted by FAO and WHO, evaluated three veterinary drugs in Rome 20–29 February 2024.The report represents...

Safety evaluation of certain food additives: prepared by the ninety-sixth meeting of the Joint FAO/WHO Expert Committee on Food Additives (‎JECFA)‎

The Ninety-sixth meeting of the Joint FAO/WHO Executive Committee on Food Additives was held in Geneva from 27 June to 6 July 2023. The purpose of the...

Measures for the control of Campylobacter spp. in chicken meat: meeting report

To collate and assess the most recent scientific information relevant to the control of thermotolerant Campylobacter species in broiler production and...

Pesticide residues in food 2022: Joint FAO/WHO meeting on pesticide residues: Evaluation, part II: toxicological

A Joint Meeting of the Food and Agriculture Organization of the United Nations (FAO) Panel of Experts on Pesticide Residues in Food and the Environment...

Evaluation of certain food additives: ninety-seventh report of the Joint FAO/WHO Expert Committee on Food Additives

The Ninety-seventh report of the Joint FAO/WHO Expert Committee on Food Additives, Rome, 31 October–9 November 2023.The report represents JECFA evaluation...

Report 2023: pesticide residues in food: Joint FAO/WHO Meeting on Pesticide Residues

The annual Joint Meeting of the Food and Agriculture Organization of the United Nations (FAO) Panel of Experts on Pesticide Residues in Food and the...

Risk assessment of food allergens: part 4: establishing exemptions from mandatory declaration for priority food allergens: meeting report

The Codex Committee on Food Labelling (CCFL) requested scientific advice as to whether certain foods and ingredients, such as highly refined foods and...

Evaluation of certain food additives: ninety-sixth report of the Joint FAO/WHO Expert Committee on Food Additives

The Ninety-sixth meeting of the Joint Food and Agriculture Organization of the United Nations (FAO)/World Health Organization (WHO) Expert Committee on...

Documents

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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...

JEMRA of viruses in foods Part 1: food attribution, analytical methods, and indicators publication cover

The Joint FAO/WHO Expert Meeting on Microbiological Risk Assessment (JEMRA) on microbiological risk assessment of viruses in foods was convened in...