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In epidemiology, the attack rate is the proportion of an at-risk population that contracts the disease during a specified time interval. [1] It is used in hypothetical predictions and during actual outbreaks of disease.
The rate at which the consumer encounters food items per unit of food density is called the attack rate, a. The average time spent on processing a food item is called the handling time, h . Similar equations are the Monod equation for the growth of microorganisms and the Michaelis–Menten equation for the rate of enzymatic reactions.
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The first version, Epi Info 1, was originally developed by Jeff Dean while he was in high school. [ 3 ] [ 4 ] It was an MS-DOS batch file on 5.25" floppy disks and released in 1985. [ 5 ] MS-DOS continued to be the only supported operating system until the release of Epi Info 2000, which was written in Microsoft's Visual Basic and became the ...
An infection rate or incident rate is the probability or risk of an infection in a population.It is used to measure the frequency of occurrence of new instances of infection within a population during a specific time period.
The GTD describes itself as the "most comprehensive unclassified data base on terrorist events in the world" and includes over 200,000 terrorist attacks in its 2021 version. [2] The entire database (about 80 MB Excel file and 9 MB geodatabase file) is available for download via the website. [4] The GTD includes more than 95,000 bombings .
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The source of the outbreak was two Sizzler restaurants that apparently allowed raw meat to come into contact with other food items. The infected meat was traced to the Excel meat packing plant in Colorado. [46] [47] There were 19 confirmed cases, 19 likely cases, and 49 suspected cases of E. coli O157:H7 in Oregon in August.