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Contaminants enter food through many pathways, including animal sources, air, contaminated water, dirt, natural food contents, and accidental handling errors by food handlers. Biological contamination involves microorganisms such as bacteria, viruses, parasites, and fungi, which may cause illness or produce toxins. Foodborne illness symptoms commonly include diarrhea, vomiting, fever, nausea, abdominal cramps, and jaundice, with onset times ranging widely from minutes to weeks.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/biological-chemical-and-physical-contaminants-how-contamination-happens-biological-contamination-and-foodborne-illness-symptoms/495977/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/biological-chemical-and-physical-contaminants-how-contamination-happens-biological-contamination-and-foodborne-illness-symptoms/495977.png","ImageObject",300,407,{"name":92,"@type":93},"Kyle","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-10","2026-10-02",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is food contamination and what types does it include?","Question",{"text":112,"@type":113},"Food contamination is the presence of harmful substances in food. Those substances can be biological, chemical, or physical.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does contamination of food usually happen?",{"text":117,"@type":113},"Most contamination happens accidentally through food handling. Food handlers who don’t wash hands after using the restroom can contaminate food and surfaces via the fecal-oral route, and illness can also spread contaminants through sneezing or vomiting.",{"name":119,"@type":110,"acceptedAnswer":120},"What are common symptoms of a foodborne illness and how does onset time vary?",{"text":121,"@type":113},"Common symptoms include diarrhea, vomiting, fever, nausea, abdominal cramps, and jaundice. Onset time depends on the illness and can range from about 30 minutes to as long as six weeks.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},495977,1791900303,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},3985741905716,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","0771On  \nBiolugial Chenicaland PlyfajcontniatsRespondng toafoodAllergensfoodbome lless Outbreak  \n# AlegysmptonsParasies\n\n一Biologcal bontaminatoi -fungiPrevening AlergisymptonsoBicoglal loxnsReacfions—Chemieal contamansPysialontannns  \n(mm)Shigela Outbreak  \nSixteen guests and three catering hall staff got sick with Shigella spp.The guestswere part of a large group of National Guard veterans at a reunion.They ate at alarge and popular catering hall locatedin the southeastern United States  \nWithin one to three days after the catered event,reports began to come intothe local regulatory authority.Those who had gotten sick reported very similarsymptoms.Each hadexperienced stomach cramps,fever,and diarrhea.Threepeople went to the emergency room to seek treatment.  \nThe specific food involved was never determined.But the regulatory authorityconfirmed that the outbreak was likely caused by the catering hal's lead cook.He was not feeling well the morning of the luncheon when he reported to workHe also had failed to wash his hands many times during his morning shift.Thecook had prepped the food that was served at the luncheon.  \nThe catering hall's owners and management teamworked with the localregulatory authority to change procedures about staff llnesses.They also startedan aggressive training program that focused on correct handwashing.  \nYou Can Prevent This                    \nIllnesses such as the one in the story above can be prevented if youunderstand how pathogens contaminate food.In this chapter,youwill learn about the following topics.  \n● Biological,chemical,and physical contaminants and how toprevent them  \n● How to prevent the deliberate contamination of food  \n·How to respond to a foodborne-illness outbreak  \n·Common food allergens and how to prevent reactions to them  \nBiological Chemical,and Pbysieal Contaminants  \nHow Contamination—VirusesA   mpoHappens-ParasitesnandBiological Contamination—Fungi1ee  eg—Symptoms of-Biological ToxinsFoodbomellness-Chemical Cantaminants—Physical Contaminants  \n# Biological,Chemical,and Physical Contaminants\n\nOne of the foodservice manager's most important roles is to preventany type of contamination of food from occurring.Contaminationis the presence of harmful substances in food.Those substancescan be biological,chemical,or physical.Most contaminants causefoodborne illness.Others can result in physical injury.  \n# How Contamination Happens            \n\nContaminants come from a variety of places.Many contaminantsare found in the animals we use for food.Others come from the air,contaminated water,and dirt.Some contaminants occur naturally infood,such as the bones in fish.  \nFood can be contaminated on purpose.But most food  \ncontamination happens accidentally.Most contaminants get intofood and onto food-contact surfaces because of the way that peoplehandle them.For example,food handlers who don’t wash their handsafter using the restroom may contaminate food and surfaces withfeces from their fingers.Once the food that the food handler touchedis eaten,a foodborne illness may result.This is called the fecal-oralroute of contamination.  \nFood handlers can also pass on contaminants when they are incontact with a person who is ill.Some contaminants are passed veryeasily in any of these ways.  \n·From person to person  \n。Through sneezing or vomiting onto food or food-contact surfaces  \n·From touching dirty food-contact surfaces and equipment,andthen touching food  \nSimple mistakes can result in contamination.For example,allowingready-to-eat food to touch surfaces that have come in contact withraw meat,seafood,and poultry can lead to contamination.Anexample is shown in the photo at left.Storing food incorrectly orcleaning produce incorrectly can also lead to contamination.So canthe failure to spot signs ofpests in the establishment,because pestsare a major source of disease.  \n# Biological Contamination             \n\nMicroorganisms are small,living organisms that can be seen onlythrough a micros","cbCaiuZz0Vwl66n5","https://ap.wps.com/l/cbCaiuZz0Vwl66n5","pdf",5117441,18,"English","# Food Contamination\n## Biological, Chemical, and Physical Contaminants\n## How Contamination Happens\n## Biological Contamination\n## Symptoms of Foodborne Illness\n## Bacteria (Characteristics, Detection, Growth, Prevention)","[{\"question\":\"What is food contamination and what types does it include?\",\"answer\":\"Food contamination is the presence of harmful substances in food. Those substances can be biological, chemical, or physical.\"},{\"question\":\"How does contamination of food usually happen?\",\"answer\":\"Most contamination happens accidentally through food handling. Food handlers who don’t wash hands after using the restroom can contaminate food and surfaces via the fecal-oral route, and illness can also spread contaminants through sneezing or vomiting.\"},{\"question\":\"What are common symptoms of a foodborne illness and how does onset time vary?\",\"answer\":\"Common symptoms include diarrhea, vomiting, fever, nausea, abdominal cramps, and jaundice. Onset time depends on the illness and can range from about 30 minutes to as long as six weeks.\"}]","Biological, Chemical, and Physical Contaminants - How Contamination Happens - Biological Contamination and Foodborne Illness Symptoms | PDF",1790925185,45]