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New research suggests that face masks may offer more protection against coronavirus infection than previously thought. It suggests that coughs and sneezes may be projected much further than scientists had thought possible. The World Health Organisation is considering whether to update its guidance on face masks and the White House may recommend that Americans wear them. Meanwhile in the UK hospitality companies are turning their skills to help those in need. And for the second week in a row, applause has rung out from members of the public showing gratitude to NHS staff and other workers helping to keep the country going. Sophie Raworth presents BBC News at Ten coverage from Science Editor David Shukman and Social Affairs Correspondent Alison Holt.

What happens when you catch coronavirus? The Telegraph’s Global Health Security Editor Paul Nuki explains all the ways in which you could become infected with COVID-19 and how your body reacts to this virus.

What happens when the virus enters the body?

When the virus enters your body it binds to two cells in the lungs – goblet cells that produce mucus and cilia cells which have hairs on them and normally prevent your lungs filling up with debris and fluid such as virus and bacteria and particles of dust and pollen.

The virus attacks these cells and starts to kill them – so your lungs begin to fill with fluid making it hard for you to breathe. This phase of the disease is thought to last about a week.

At this point your immune system will start to kick in and fight off the invaders. You will develop a fever and your high body temperature will create a hostile environment for the virus. You will start to get rid of the mucus in the form of coughing and a runny nose.

But in some people – particularly the elderly and those with other health conditions – the immune system can go into overdrive. As well as killing the virus it also starts to kill healthy cells.

This heightened immune response can trigger a “cytokine storm” – white blood cells activate a variety of chemicals that can leak into the lungs, which along with the attack on the cells damages them even further. Scans of the lungs show “ground-glass” opacity and then “crazy paving” patterns, as they fill with mucus making it harder and harder to breathe.