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An infectious disease agent can be transmitted in two ways: as horizontal disease agent transmission from one individual to another in the same generation (peers in the same age group) [3] by either direct contact (licking, touching, biting), or indirect contact through air – cough or sneeze (vectors or fomites that allow the transmission of the agent causing the disease without physical ...
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.
mostly human-to-human direct contact, meat consumption [10] [11] Leptospirosis: Leptospira interrogans: rats, mice, pigs, horses, goats, sheep, cattle, buffaloes, opossums, raccoons, mongooses, foxes, dogs direct or indirect contact with urine of infected animals 1616–20 New England infection; present day in the United States. Louping ill
[2] [1] [3] [4] Major modern diseases such as Ebola and salmonellosis are zoonoses. HIV was a zoonotic disease transmitted to humans in the early part of the 20th century, though it has now evolved into a separate human-only disease. [5] [6] [7] Human infection with animal influenza viruses is rare, as they do not transmit easily to or among ...
A person can get COVID-19 indirectly by touching a contaminated surface or object before touching their own mouth, nose, or eyes, [8] [19] though strong evidence suggests this does not contribute substantially to new infections. [12] Transmission from human to animal is possible, as in the first case, but the probability of a human contracting ...
Human-to-human transmission (HHT) is an epidemiologic vector, [1] [2] [3] [4] [5] [6] [7] [8] especially in case the disease is borne by individuals known as ...
This clinic uses negative room pressure to prevent disease transmission. Most epidemics are caused by contagious diseases, with occasional exceptions, such as yellow fever. The spread of non-contagious communicable diseases is changed either very little or not at all by medical isolation of ill persons or medical quarantine for exposed persons ...
It is intended to be posted outside rooms of patients with an infection that can spread through airborne transmission. [1] Video explainer on reducing airborne pathogen transmission indoors. Airborne transmission or aerosol transmission is transmission of an infectious disease through small particles suspended in the air. [2]