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once every 6 hours q2wk: once every 2 weeks qAc Before every meal (from Latin quaque ante cibum) q.a.d. every other day (from Latin quaque altera die) QALY: quality-adjusted life year: q.AM: every day before noon (from Latin quaque die ante meridiem) q.d. every day (from Latin quaque die) q.d.s. four times each day (from Latin quater die ...
The infection of a disease begins when a pathogenic (disease-causing) infectious agent, or a pathogen, is successfully transmitted from one host to another. [3] Pathogens leave the body of one host through a portal of exit , are carried by some mode of transmission and after coming into contact (exposure) with a new susceptible host, they enter ...
As the disease becomes more severe, infectiousness increases. Meanwhile the host's body mounts immune responses to contain or eradicate the pathogens, and after a certain period of time, it may achieve that goal. The quantity of pathogens in the host's body become sufficiently low so that the host is no longer capable of transmitting the disease.
Methods of preventing the disease include improving access to clean water and reducing the number of snails. [5] In areas where the disease is common, the medication praziquantel may be given once a year to the entire group. [5] This is done to decrease the number of people infected, and consequently, the spread of the disease. [5]
In epidemiology, case fatality rate (CFR) – or sometimes more accurately case-fatality risk – is the proportion of people who have been diagnosed with a certain disease and end up dying of it. Unlike a disease's mortality rate, the CFR does not take into account the time period between disease onset and death. A CFR is generally expressed ...
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.
Distal muscular dystrophy, also called distal myopathy, is essentially any muscle disease that preferentially affects the hands and/or feet, a much less common pattern than proximal muscle weakness. Late adult-onset type 1; Late adult-onset type 2a; Late adult-onset type 2b; Early adult-onset type 1; Early adult-onset type 2; Early adult-onset ...
A localized disease is one that affects only one part of the body, such as athlete's foot or an eye infection. Disseminated disease A disseminated disease has spread to other parts; with cancer, this is usually called metastatic disease. Systemic disease A systemic disease is a disease that affects the entire body, such as influenza or high ...