{'fraction_non_alphanumeric': 0.019269102990033222, 'fraction_numerical': 0.0, 'mean_word_length': 5.51948051948052, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Human viral gastroenteritis

Acute viral gastroenteritis is a very common illness which occurs in both epidemic and endemic forms. It affects all age groups worldwide and also includes some of the commonly encountered travelers diarrhea. This syndrome is recognized as being second in frequency only to the common cold among illnesses affecting U.S. families under epidemiological surveillance. The clinical presentation of the illness is variable, but in general it is selflimited, has an explosive onset, and is manifested by varying combinations of diarrhea, nausea, vomiting, low-grade fever, abdominal cramps, headache, anorexia, myalgia, and malaise. It is not only responsible for a great deal of misery and time lost from school and work, but can be severe, indeed fatal, in the infant, elderly, or debilitated patient. Due to associated malabsorption, viral gastroenteritis may trigger or enhance the morbidity associated with malnutrition in marginally nourished populations. Identification and characterization of gastroenteritis viruses and a clear understanding of their epidemiology and immunology are necessary to be able to prevent their transmission and to develop appropriate vaccines. This has proven to be an especially formidable task since all currently recognized or suspected agents of human viral gastroenteritis share the property of being initially non-cultivatable by conventional in vitro techniques or in laboratory animal hosts. It has been long recognized that the commonly