Reston ebolavirus spreads efficiently in pigs

Reston ebolavirus (RESTV) should be considered a livestock pathogen with potential to affect other mammals, including people, according to National Institutes of Health scientists. The caution comes from a study published ...

Russia probes mystery seal die-off

Russian authorities said Friday they were investigating the mysterious death of nearly 300 endangered seals that had been discovered washed up on the shores of the Caspian Sea.

Fern leaves improve immunity and support growth in carp

According to a biologist from RUDN University, fern leaves powder has a positive effect on the immune system, antimicrobial activity, and growth of carps. Based on this data, fish farms can breed big and healthy fish without ...

'Nanobodies' could hold clues to new COVID-19 therapies

WEHI researchers are studying 'nanobodies' – tiny immune proteins made by alpacas—in a bid to understand whether they might be effective in blocking SARS-CoV-2, the virus that causes COVID-19.

page 1 from 40

Infectious disease

An infectious disease is a clinically evident disease resulting from the presence of pathogenic microbial agents, including pathogenic viruses, pathogenic bacteria, fungi, protozoa, multicellular parasites, and aberrant proteins known as prions. These pathogens are able to cause disease in animals and/or plants. Infectious pathologies are usually qualified as contagious diseases (also called communicable diseases) due to their potential of transmission from one person or species to another. Transmission of an infectious disease may occur through one or more of diverse pathways including physical contact with infected individuals. These infecting agents may also be transmitted through liquids, food, body fluids, contaminated objects, airborne inhalation, or through vector-borne spread.

The term infectivity describes the ability of an organism to enter, survive and multiply in the host, while the infectiousness of a disease indicates the comparative ease with which the disease is transmitted to other hosts. An infection however, is not synonymous with an infectious disease, as an infection may not cause important clinical symptoms or impair host function.

This text uses material from Wikipedia, licensed under CC BY-SA