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Everything you need to know about B.1.617.2, the Delta variant of coronavirus © Getty Images

Delta variant Everything you need to know about the UK's dominant COVID strain

Early COVID-19 symptoms differ among age groups and between men and women © Getty Images

Early COVID-19 symptoms differ among age groups and between men and women

COVID-19: Lower vaccine uptake in people with prior infection © Getty Images

COVID-19: Lower vaccine uptake in people with prior infection

COVID vaccine UK: everything you need to know about the new coronavirus jabs © Getty

Coronavirus vaccines All you need to know

A diet rich in omega-3 could reduce migraines © Getty Images

A diet rich in omega-3 could reduce migraines

COVID-19: Pets may be at risk of catching it from their owners © Getty Images

COVID-19 Pets may be at risk of catching it from their owners

FFP3 masks for hospital staff cuts COVID-19 infections by up to 100 per cent © Getty Images

FFP3 masks for hospital staff cuts COVID-19 infections by up to 100 per cent

Blood test can accurately detect 50 types of early-stage cancer © Getty Images

Blood test can accurately detect 50 types of early-stage cancer

Artificial sweeteners can turn healthy gut bacteria into pathogens © Getty Images

Artificial sweeteners can turn healthy gut bacteria into pathogens

Sicily's extinct dwarf elephant shrank by 200kg every generation © Archives of the Gemmellaro Geological Museum

Fossil DNA reveals how an ancient species of elephant shrank to one-fifth of its original size

T. rex teens may have driven medium-sized dinosaur species extinct © Zubin Erik Dutta

T. rex teens may have driven medium-sized dinosaur species extinct

COVID-19 cases are doubling every 11 days in England, study finds © Getty Images

COVID-19 cases are doubling every 11 days in England, study finds

Sea-skimming 'flying ferries' could cross the Channel at 180mph © Brittany Ferries/PA

Battery-powered, sea-skimming ‘flying ferries’ could cross the Channel at 180mph

COVID-19: Scientists discover source of life-threatening blood clots © Getty Images

COVID-19: Scientists discover source of life-threatening blood clots

Infants produce a strong immune response to COVID-19 © Getty Images

Infants produce a strong immune response to COVID-19