- Infectious disease preparation is inadequate in 28 states, with rising heroin use contributing to the problem via the spread of HIV and HCV: report.
- France on Friday tightened sanitary measures and restricted movement of poultry across part of the southwest as it tries to contain its first bird flu outbreak in eight years that threatens to hit exports.
- A new study reaffirms allowing children to avoid surgery in lieu of antibiotics for cases of mild appendicitis.
- Shingles might boost, temporarily, our stroke risk, a new study suggests.
- A school in Australia that advised parents to be tolerant of anti-vaxxers suffers major chickenpox outbreak.
- Bathing has a rich history among all human civilizations that spans long before the germ theory of disease even emerged.
- A frightening epidemic of birth defects in Brazil and elsewhere is suspected to be caused by the emergence of a once-ignored mosquito-borne virus called Zika.
- France reported on Monday three more cases of highly pathogenic bird flu in the southwest of the country, as the European Union's biggest agriculture producer tries to contain its first outbreak of the disease in eight years.
- A previously unknown layer of defense begins its work before what was believed to be your first immune response becomes active: study.
- The E. coli outbreak linked to Chipotle Mexican Grill Inc has expanded to nine states, with 47 of the 52 people affected having reported eating at the popular burrito chain.
- Elizabeth Taylor formed an underground network to procure experimental AIDS drugs for friends and other patients, says Kathy Ireland.
- A rare disease spread by ticks and rabbits alike is on the rise this year in Colorado, South Dakota, Wyoming, and Nebraska, the CDC reports.
An infection is the immune response to a colonization of a host organism by parasite species. Infecting parasites seek to use the host's resources to reproduce, often resulting in disease. Colloquially, infections are usually considered to be caused by microorganisms or microparasites like viruses, prions, bacteria, and viroids, though larger organisms like macroparasites and fungi can also infect.