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老年人（≥６５岁）比年轻人更容易发生食源性胃肠炎以及由此引起的死亡。有若干因素使老年人对食源性感染和其它感染病更为易感。这些因素有年龄相关的体液免疫和细胞免疫减弱、年龄相关的胃肠道变化（胃酸分泌减少、肠蠕动变慢）、营养不良、缺乏运动、入住养老院和过量服用抗生素。与养老院有关联的食源性感染暴发流行资料提示，老年人比一般人群更容易死于食源性弯曲菌、产气荚膜梭状芽孢杆菌、大肠杆菌Ｏ１５７∶Ｈ７、沙门氏菌和金黄色葡萄球菌感染。沙门氏菌感染是养老院最常见的病因和死因，其中肠炎沙门氏菌是患病和死亡的主要原因。保持健康的生活方式、经常运动、保持平衡的膳食、经常接受卫生保健、注意个人卫生、监测食品制备加工等，会使老年人的食源性感染和其它感染病发病率降低
Elderly people (≥65 years old) are more likely to suffer from food-borne gastroenteritis and consequent death than young people. There are several factors that make older people more susceptible to food-borne and other infectious diseases. These factors are related to age-related humoral and cellular immunodeficiency, age-related gastrointestinal changes (decreased gastric acid secretion, slowed bowel motility), malnutrition, lack of exercise, admission to nursing homes and overdosing of antibiotics. Popular data on outbreaks of foodborne infections associated with nursing homes suggest that older adults are more likely to die of Campylobacter spp., Clostridium perfringens, Escherichia coli O157: H7, Salmonella and Staphylococcus aureus than the general population infection. Salmonella infection is the most common cause and cause of death in nursing homes, of which Salmonella enteritidis is the leading cause of morbidity and mortality. Maintaining a healthy lifestyle, regular exercise, balanced diet, regular access to health care, personal hygiene and monitoring of food preparation and processing will lower the incidence of food-borne and other infectious diseases among the elderly