Maps are essential for exploring trackless wilderness or vast expanses of ocean. The same is true for scientific studies that try to open up new fields and develop brand-new devices. A journey without maps and signposts tends to end in...

COLUMBIA, S.C. -- A duck killed by a hunter in South Carolina had a contagious and dangerous bird flu that has not been detected in the wild in the U.S. in five years, officials said. The flu poses a low...

BRUSSELS -- The COVAX global vaccine-sharing program has delivered 1 billion COVID-19 vaccine doses, one of the organizations which manages it said on Saturday. Supplies to poorer nations have long been very limited because of lack of vaccines, as wealthier...

Mitochondria are known as energy suppliers for our cells, but they also play an important role in the defense against pathogens. They can initiate immune responses, and deprive pathogens of the nutrients they need to grow. A research team led...

Insecticides play a central role in efforts to counter global impacts of mosquito-spread malaria and other diseases, which cause an estimated 750,000 deaths each year. These insect-specific chemicals, which cost more than $100 million to develop and bring to market,...

Get ready to learn more Greek letters. Scientists warn that Omicron's whirlwind advance practically ensures it won't be the last version of the coronavirus to worry the world. Every infection provides a chance for the virus to mutate, and Omicron...

A doctor and a psychologist say Health Canada's move to allow physicians to request restricted psychedelic drugs for patients as part of their psychotherapy is a positive step toward transforming mental-health care. But they say the recent change to the...