The coronavirus has reached every corner of America, devastating cities and rural counties alike

New vaccines should protect you from Covid. It’s unclear if they stop you spreading the virus

Supporter (21) created Twitter accounts claiming to be US president’s relatives

World round-up: Clashes in Italy over latest restrictions; Germany ‘likely to reach 20,000 cases daily by week’s end’

Health experts say the increase may be due colder temperatures are driving people and fatigue with Covid-19 precautions

UK faces new restrictions as over 12,000 people diagnosed, and 65 die of coronavirus

Company is exploring changes to the small blue notices that it attaches to certain false or misleading tweets

New process breaks plastic down to ‘original building blocks’, which can then be reused

World wrap: India’s cases decline after last week’s record total

University of Washington predicts overall toll will double to 400,000 by the end of year

US president defends his handling of the pandemic during public event

Worst-case forecasts of 8,000 daily cases, ICU shortages and a ‘deadly December’

Research indicates antibodies appear to persist months after infections have resolved

By practicing managing your emotions, you’ll experience a sense of freedom in your life

Research published in Lancet forecasts major shifts in population and economic power

Risks of viruses crossing species barrier into humans in densely populated regions highlighted

Experts voice despair at president Jair Bolsonaro’s response as toll surpasses 42,000

World round-up: More than 7m cases globally; Pakistan not likely to see peak before August

World round up: Up to 190,000 Africans could die in first of pandemic, WHO says

Q&A: What are the numbers? How are restrictions enforced? How does the virus spread?

US now epicentre of worldwide Covid-19 outbreak which WHO warns is yet to peak

National Publc Health Emergency Team in Ireland criticises US research as unreliable

High number of asymptomatic cases is complicating efforts to predict pandemic’s course

Social media campaign against Dr Anthony Fauci after he rubbed forehead at press conference

Incredible Years founder Prof Carolyn Webster-Stratton on challenging children

Is coffee good for you? Is it addictive? Does the way it's made matter and other questions about our daily caffeine hit

Deaths could rise if new ways to tackle antibiotic resistance are not found quickly, experts say

Uighur homestays by cadres extends surveillance to within the home, local Muslims say

In some parts of the world, children’s health has dramatically improved

Neural networks can now generate convincing images of ‘people’ who don’t exist

We have more choice than ever, but we are still in thrall to the concept of marriage. Why?

Research finds one-fifth of deaths are associated with poor diets

‘When we ask men . . . about 50% are willing to try this new method – when you ask their partners, the percentage is even higher’

You are your child’s safe space, the reassurance that what is happening is perfectly normal

Entrepreneur helped usher in the personal computing revolution

Major report on alcohol consumption finds Irish habits are similar to other Europeans

Contraceptives must be made available over the counter at pharmacists

Access Science: Dublin conference to explore findings from fossilised flora

Weakening of Gulf Stream could result in rapid temperature increases

‘E-cigarettes cannot be simply categorized as either beneficial or harmful’