Search results
Results From The WOW.Com Content Network
Arthropods are common vectors of disease.A vector is an organism which spreads disease-causing parasites or pathogens from one host to another. Invertebrates spread bacterial, viral and protozoan pathogens by two main mechanisms.
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 Wells-Riley model is a simple model of the airborne transmission of infectious diseases, [1] [2] developed by William F. Wells and Richard L. Riley for tuberculosis [3] and measles. [4] Wells-Riley can also be applied to other diseases transmitted in the air, such as COVID-19.
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection.
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. Thus, a "contagious disease" is sometimes defined in practical terms, as a disease for which isolation or quarantine are useful public health responses.
Orthomyxoviridae (from Ancient Greek ὀρθός (orthós) 'straight' and μύξα (mýxa) 'mucus') [1] is a family of negative-sense RNA viruses.It includes seven genera: Alphainfluenzavirus, Betainfluenzavirus, Gammainfluenzavirus, Deltainfluenzavirus, Isavirus, Thogotovirus, and Quaranjavirus.
Marburg is a rare but “severe hemorrhagic fever that can cause serious illness and death,” the U.S. Centers for Disease Control says, adding that there is no treatment or vaccine for it.
Needlestick injuries may also occur when needles are exchanged between personnel, loaded into a needle driver, or when sutures are tied off while still connected to the needle. Needlestick injuries are more common during night shifts [ 14 ] and for less experienced people; fatigue, high workload, shift work, high pressure, or high perception of ...