Infectious Diseases

New histoplasmosis risk map

Histoplasmosis is a common lung infection caused by microscopic fungal spores that reside in soil. Most people who inhale the spores don't get sick, but for those with weakened immune systems, the infection can become severe. ...

Sep 24, 2018
popularity0 comments 0

Study finds human milk components in amniotic fluid

Human milk oligosaccharides (HMOs) are complex carbohydrates that are highly abundant and unique to human milk. Accumulating evidence indicates that exposure to HMOs in the postnatal period has both immediate and long-term ...

Oct 02, 2018
popularity0 comments 0

Risk-profiling can benefit HIV prevention

That men who have sex with men run a greater risk of HIV than others has been known since the virus was discovered. However a thesis from Karolinska Institutet now shows that it is a small sub-group of these men who account ...

Sep 27, 2018
popularity0 comments 0

Infectious diseases, also known as contagious diseases or transmissible diseases, and include communicable diseases, comprise clinically evident illness (i.e., characteristic medical signs and/or symptoms of disease) resulting from the infection, presence and growth of pathogenic biological agents in an individual host organism. In certain cases, infectious diseases may be asymptomatic for much or all of their course. Infectious pathogens include some viruses, bacteria, fungi, protozoa, multicellular parasites, and aberrant proteins known as prions. These pathogens are the cause of disease epidemics, in the sense that without the pathogen, no infectious epidemic occurs.

Transmission of pathogen can occur in various ways including physical contact, contaminated food, body fluids, objects, airborne inhalation, or through vector organisms. Infectious diseases that are especially infective are sometimes called contagious and can be easily transmitted by contact with an ill person or their secretions. Infectious diseases with more specialized routes of infection, such as vector transmission or sexual transmission, are usually regarded as contagious but do not require medical quarantine of victims.

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 is not synonymous with an infectious disease, as some infections do not cause illness in a host.

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

Latest Spotlight News

Scientists to improve cancer treatment effectiveness

Together with researchers from the University of Nantes and the University of Reims Champagne-Ardenne in France, experts from the National Research Nuclear University MEPhI have recently developed a quantum dot-based microarray ...

A single missing gene leads to miscarriage

A single gene from the mother plays such a crucial role in the development of the placenta that its dysfunction leads to miscarriages. Researchers from the Medical Faculty of Ruhr-Universität Bochum (RUB) have observed this ...