destroy microbes. Even in conventional agricultural prac¬ tices, which use animal manure as well as chemical fertilizers, there are states that restrict the use of manure. For example, Florida has a 120-day restriction on crops grown for human consumption.It is my understanding that the recent cases of E coli 0157:H7 did not stem from organic food. Therefore, specifi¬ cally indicating organic production as a contributor to the in¬ creasing outbreaks of foodborne infections is unjustified. Or¬ ganic farmers and processors follow food safety regulations and safe sanitation practices. The basis for organic certifica¬ tion is on-site inspections and production plans that require farmers and processors to detail how their operations provide for soil fertilization, pest and weed control, storage, sanita¬ tion, and product handling within the framework of organic standards. This system is compatible with surveillance and quality control systems such as Hazard Analysis Critical Control Points, which will be an important part of the solu¬ tion for eliminating further outbreaks of foodborne diseases. Pasteurization is allowed in organic production; requiring pasteurization would not necessarily be a burden to the or¬ ganic industry.In Repl y.\p=m-\ The public health hazard of fresh fruits and vegetables contaminated with feces used as fertilizer is a longstanding concern. Early in this century, Creel1 called attention to transmission of typhoid fever bacillus via fresh produce contaminated with human sewage. In W. Somerset Maugham's 1925 novel The Painted Veil, a despondent microbiologist committed suicide during a cholera epidemic by eating a fresh garden salad that was understood to be grown with human sewage fertilizer. More recently, foodborne outbreaks of E coli 0157:H7 infection and of cryptosporidiosis in apple cider, juice, and lettuce have highlighted concern that foodborne pathogens present in animal manures might also find their way into fresh produce.2 This could happen directly, via use of insufficiently composted manure as fertilizer, or indirectly, through irrigation water or untreated wash waters that are contaminated with animal manures. A small outbreak of E coli 0157:H7 infection attributed to homegrown produce fertilized with fresh bovine manure shows how this could happen on a small scale.3Ms DiMatteo is quite correct that adequate composting of manure should in principle eliminate pathogens from manure.Unfortunately, knowledge of the critical times and tempera¬ tures needed to make composted animal manures microbiologically safe is incomplete, and the regulatory approach to agricultural use of animal manures is patchy at best. Al¬ though the Organic Foods Production Act of 1990 specifies that raw manures should not be applied within 60 days of harvest, this is not entirely reassuring; Wang and colleagues4 have shown that E coli 0157:H7 can survive in bovine feces for 70 days depending on the temperature.Although important foodborne pathogens are present both in human sewage and in animal manure, there...