COVID-19: 3 distinct immune responses to SARS-CoV-2 identified

The discovery could help predict the trajectory of disease in severe cases and ultimately inform treatment decisions

UN climate change chief urges alma mater to divest from fossil fuels

Swarthmore College has an estimated $139 million in fossil fuel holdings

Exercising could help fight cancer, says study

Physical activity boosts flow of drugs to the tumour, making chemotherapy more effective

Deepwater Horizon spill: Dispersant more toxic to corals than oil

Following the spill, coral populations were coated with a dark-coloured flocculent slime that was found to contain oil from the spill and …