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Zika virus: 6 key things we don’t yet know
From lack of data to inconclusive blood tests to the unique challenges of pregnancy, experts weigh in on the knowledge gaps in this emerging infection

WHO classifies red meat 'probably carcinogenic,' links it to higher colon cancer risk
7 key questions and answers that will help you understand latest findings on red and processed meats

WHO recommends daily HIV prevention pill for all men who have sex with men
But researchers caution daily adherence may not be realistic and are looking into alternatives

Researchers uncover how poxviruses such as smallpox evolve rapidly - despite low mutation rates
Study reveals novel ‘accordion-like’ means of viral adaptation against host viral defenses

Study finds that yo-yo dieting does not thwart weight loss efforts or alter metabolism long term
Obesity is a known risk factor for many cancers as well as heart disease and diabetes

Hutchinson Center to build first U.S. cancer clinic and training facility in Africa thanks, in part, to a grant from USAID
Seattle and Ugandan researchers collaborate to study and treat infection-related cancers