Word: freeman
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...Freeman said the existing knowledge about Norwalk is based largely on an "experiment" on some high school seniors...
...High school kids...went through the illness as a public service in the spring of their senior year," Freeman said. "They went through the illness several times...
...virulence of a case depends on the dose of the pathogen," Freeman said...
...People in the infirmary on the first night who were sick with the primary common source case gave the nurses on duty secondary cases," Freeman said. "Secondary cases could be more or less depending on the dose, but people tend to get less sick on successive occasions...
Only the "first wave of evidence makes the Norwalk agent seem most likely," Freeman said. The virus is very hard to identify because the symptoms are indistinguishable from many other gastroenteritis cases...