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Host cell. Main article: Host cell. A cell in the body that becomes invaded by a virus and then acts as a host to produce more virus particles. Hygiene theater. Main article: Hygiene theater. The practice of taking hygiene measures intended to give the illusion of improved health safety while actually doing little to reduce any risk.
The coronavirus is on everyone’s minds. As an epidemiologist, I find it interesting to hear people using technical terms – like quarantine or super spreader or reproductive number – that my ...
Identify the existence of the outbreak (Is the group of ill persons normal for the time of year, geographic area, etc.?) Verify the diagnosis related to the outbreak; Create a case definition to define who/what is included as a case; Map the spread of the outbreak using Information technology as diagnosis is reported to insurance
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
For a given epidemic or pandemic, the average of its estimated death toll range is used for ranking. If the death toll averages of two or more epidemics or pandemics are equal, then the smaller the range, the higher the rank. For the historical records of major changes in the world population, see world population. [3]
A history of epidemics maintained by the Chinese Empire from 243 B.C. to 1911 A.C. shows an approximate correlation between the frequency of epidemics and the growth of the population. [74] Here is an incomplete list of known epidemics which spread widely enough to merit the title "pandemic".
An alert designated to warn people of a fire northwest of downtown Los Angeles was sent county-wide, according to a local official. At the time, emergency management was monitoring the Kenneth ...
Epidemics of infectious disease are generally caused by several factors including a change in the ecology of the host population (e.g., increased stress or increase in the density of a vector species), a genetic change in the pathogen reservoir or the introduction of an emerging pathogen to a host population (by movement of pathogen or host ...