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Invasive disease linked to raw freshwater fish

Risk profile - Group B Streptococcus (GBS) Streptococcus agalactiae sequence type (ST) 283 in freshwater fish











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    Book (stand-alone)
    Risk profile - Group B Streptococcus (GBS) –​ Streptococcus agalactiae sequence type (ST) 283 in freshwater fish 2021
    In Singapore during 2015, Group B Streptococcus (GBS) sequence type 283 (ST283) caused the only reported foodborne outbreak of invasive GBS disease. Over 20 percent of cases were healthy adults without comorbidities, which is unusual for GBS. The outbreak was linked to the consumption of raw freshwater fish. Subsequent investigations found that ST283 GBS has been common among GBS causing disease in humans and in tilapia across Southeast Asia for at least 20 years, whereas it was almost non-existent outside this region. Given the novelty of the outbreak, this risk profile consolidates the current knowledge to identify data gaps about GBS ST283 along the freshwater fish supply chain in Southeast Asia. Although GBS fish infection can present with few clinical signs of disease, outbreaks of GBS in high intensity tilapia aquaculture can result in severe infection with mortalities of up to 80 percent. These outbreaks are largely undocumented but likely have a wide effect on aquaculture, given its economic and social importance across Southeast Asia. There is also a lack of data on patterns of fish consumption, including frequency, amount, preparation and consumer demographics. Nevertheless, consumption of non-heat-treated freshwater fish is common in Southeast Asia. Given the multitude of data gaps, the risk posed by GBS ST283 from consumption of freshwater fish remains highly uncertain. Potential risk management options start with the application of good aquaculture practices and good food safety measures throughout the supply chain.
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    Brochure, flyer, fact-sheet
    Doença invasiva associada a ingestão de peixes de água doce crus fish
    Perfil de risco - Streptococcus do Grupo B (GBS) Streptococcus agalactiae com tipo de sequência (ST) 283 em peixe de água doce
    2022
    Em Singapura, durante o ano de 2015, a bactéria Streptococcus do Grupo B (GBS) com tipo de sequência 283 (ST283) causou um surto de origem alimentar de doença invasiva por GBS, sendo os únicos casos reportados no mundo. Mais de 20% dos casos foram observados em adultos saudáveis sem comorbidades, o que é incomum para GBS. O surto foi associado ao consumo de peixes de água doce crus. Investigações subsequentes constataram que o GBS ST283 é comum entre os GBS que causam doença em humanos e tilápia em todo o Sudeste Asiático há pelo menos 20 anos, ao passo que este tem sido raramente identificado fora desta região. Considerando o caráter emergente desse surto, este perfil de risco consolida o conhecimento atual para identificar os dados e a lacunas sobre a ocorrência e dinâmica do GBS ST283 em toda a cadeia de fornecimento de peixes de água doce no Sudeste Asiático.
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    Booklet
    Safe food for everyone
    FAO's work on food safety: science, standards and good practices
    2023
    A life necessity, a social event, an act of love, a way of expressing ourselves: food is all of these things, as well as an important source of employment and the heartbeat of every economy. But the food chain – growing, harvesting, processing, packaging, transporting, distributing, trading, purchasing, preparing, consuming, and eventually disposing of what we consume – is a fragile sequence in which every point is fraught with risk. These pages address the work of FAO and its partners in ensuring food is safe. Our intention is to develop, deploy and communicate the latest science; support good governance; facilitate food safety emergency prevention and response; and keep a close watch on both future opportunities and the risks that may accompany them.Food is the essence of life. And food safety is everyone’s business.
  • Thumbnail Image
    Book (stand-alone)
    Risk profile - Group B Streptococcus (GBS) –​ Streptococcus agalactiae sequence type (ST) 283 in freshwater fish 2021
    In Singapore during 2015, Group B Streptococcus (GBS) sequence type 283 (ST283) caused the only reported foodborne outbreak of invasive GBS disease. Over 20 percent of cases were healthy adults without comorbidities, which is unusual for GBS. The outbreak was linked to the consumption of raw freshwater fish. Subsequent investigations found that ST283 GBS has been common among GBS causing disease in humans and in tilapia across Southeast Asia for at least 20 years, whereas it was almost non-existent outside this region. Given the novelty of the outbreak, this risk profile consolidates the current knowledge to identify data gaps about GBS ST283 along the freshwater fish supply chain in Southeast Asia. Although GBS fish infection can present with few clinical signs of disease, outbreaks of GBS in high intensity tilapia aquaculture can result in severe infection with mortalities of up to 80 percent. These outbreaks are largely undocumented but likely have a wide effect on aquaculture, given its economic and social importance across Southeast Asia. There is also a lack of data on patterns of fish consumption, including frequency, amount, preparation and consumer demographics. Nevertheless, consumption of non-heat-treated freshwater fish is common in Southeast Asia. Given the multitude of data gaps, the risk posed by GBS ST283 from consumption of freshwater fish remains highly uncertain. Potential risk management options start with the application of good aquaculture practices and good food safety measures throughout the supply chain.
  • Thumbnail Image
    Brochure, flyer, fact-sheet
    Doença invasiva associada a ingestão de peixes de água doce crus fish
    Perfil de risco - Streptococcus do Grupo B (GBS) Streptococcus agalactiae com tipo de sequência (ST) 283 em peixe de água doce
    2022
    Em Singapura, durante o ano de 2015, a bactéria Streptococcus do Grupo B (GBS) com tipo de sequência 283 (ST283) causou um surto de origem alimentar de doença invasiva por GBS, sendo os únicos casos reportados no mundo. Mais de 20% dos casos foram observados em adultos saudáveis sem comorbidades, o que é incomum para GBS. O surto foi associado ao consumo de peixes de água doce crus. Investigações subsequentes constataram que o GBS ST283 é comum entre os GBS que causam doença em humanos e tilápia em todo o Sudeste Asiático há pelo menos 20 anos, ao passo que este tem sido raramente identificado fora desta região. Considerando o caráter emergente desse surto, este perfil de risco consolida o conhecimento atual para identificar os dados e a lacunas sobre a ocorrência e dinâmica do GBS ST283 em toda a cadeia de fornecimento de peixes de água doce no Sudeste Asiático.
  • Thumbnail Image
    Booklet
    Safe food for everyone
    FAO's work on food safety: science, standards and good practices
    2023
    A life necessity, a social event, an act of love, a way of expressing ourselves: food is all of these things, as well as an important source of employment and the heartbeat of every economy. But the food chain – growing, harvesting, processing, packaging, transporting, distributing, trading, purchasing, preparing, consuming, and eventually disposing of what we consume – is a fragile sequence in which every point is fraught with risk. These pages address the work of FAO and its partners in ensuring food is safe. Our intention is to develop, deploy and communicate the latest science; support good governance; facilitate food safety emergency prevention and response; and keep a close watch on both future opportunities and the risks that may accompany them.Food is the essence of life. And food safety is everyone’s business.

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