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The cause of dysentery is usually the bacteria from genus Shigella, in which case it is known as shigellosis, or the amoeba Entamoeba histolytica; then it is called amoebiasis. [1] Other causes may include certain chemicals, other bacteria, other protozoa, or parasitic worms. [2] It may spread between people. [4]
A contagious disease is an infectious disease that can be spread rapidly in several ways, including direct contact, indirect contact, and Droplet contact. [1] [2] These diseases are caused by organisms such as parasites, bacteria, fungi, and viruses. While many types of organisms live on the human body and are usually harmless, these organisms ...
Nosophobia, also known as disease phobia [1] or illness anxiety disorder, [2] is the irrational fear of contracting a disease, a type of specific phobia.Primary fears of this kind are fear of contracting HIV infection (AIDS phobia or HIV serophobia), [3] pulmonary tuberculosis (phthisiophobia), [4] sexually transmitted infections (syphilophobia or venereophobia), [5] cancer (carcinophobia ...
People at higher risk for severe disease from Covid-19 include older individuals and those with chronic underlying medical problems. These are also individuals at higher risk of serious outcomes ...
Before pasteurization, people routinely were sickened and died from drinking raw milk, catching diseases like tuberculosis, and raw milk is still far more likely than pasteurized milk to contain ...
In his major "state of the art" review of 1855, he proposed a substantially complete and correct model for the cause of the disease. In two pioneering epidemiological field studies, he was able to demonstrate human sewage contamination was the most probable disease vector in two major epidemics in London in 1854 . [ 115 ]
A zoonosis (/ z oʊ ˈ ɒ n ə s ɪ s, ˌ z oʊ ə ˈ n oʊ s ɪ s / ⓘ; [1] plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite, or prion) that can jump from a non-human vertebrate to a human. When humans infect non-humans, it is called reverse ...
An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens , most prominently bacteria and viruses . [ 2 ]