Research traces the evolution of a gene variant that reduces the risk of Alzheimer’s disease, finding that it originally evolved in response to infectious bacteria.

Early reports that Omicron causes less-severe disease than Delta seem to be borne out, but it’s not yet clear to what extent that’s due to the variant itself versus the populations it’s infecting.

Scientists around the world investigate how bat immune systems cope with viral attacks and how this information could be used to keep humans safe.

In people with the genetic condition, inflammation can cause a mild infection to snowball out of control, a study finds.

T.A. Wynn, I. Eltoum, I.P. Oswald, A.W. Cheever, A. Sher, "Endogenous interleukin 12 (IL-12) regulates granuloma formation induced by eggs of Schistosoma mansoni and exogenous IL-12 both inhibits and prophylactically immunizes against egg pathology," Journal of Experimental Medicine, 179:1551-61, 1994. (Cited in nearly 50 publications as of February 1996) Comments by Thomas A. Wynn and Alan Sher, National Institute of Allergy and Infectious Diseases After malaria, schistosomiasis is the second

The “tripledemic” shines a spotlight on viral interference, in which one infection can block another.

The presence and spread of new, more-infectious and immune-evading variants show that the coronavirus is not done mutating.

Those with two copies of the Δ32 allele in the CCR5 gene are 21 percent more likely to die by age 76, although it’s not clear why.

Courtesy Pacific Northwest National Laboratory Just how important are vitamins and minerals in influencing resistance to infectious diseases? Some of the best current answers to that question will be offered in a supplement to the Journal of Infectious Diseases appearing later this year. The special publication, stemming from a 1999 workshop organized by the National Institute of Allergy and Infectious Diseases, attests that the field is rife with research activity nowadays. Micronutrients such