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A person receives a smallpox vaccine to protect against monkeypox in Utrecht, the Netherlands, in August 2022

How the covid-19 pandemic helped tackle Ebola and monkeypox in 2022

27 December 2022

The covid-19 pandemic has improved communication between researchers and officials, and may have even prompted Uganda's first lockdown against Ebola


A child sitting in a hospital bed

Why are children catching so many illnesses this winter?

20 December 2022

Many countries in the northern hemisphere are seeing surges of childhood respiratory infections like influenza and RSV. While this is partly because child infections fell during covid-19 restrictions, that isn’t the whole story


Children in the UK may be more at risk of infections and other health complications this winter compared with previous years

Flu, RSV and cost of living will all harm UK child health this winter

23 November 2022

Seasonal infections are set to spike, while the cost-of-living crisis is also expected to affect some children’s mental and physical health


The covid-19 virus, SARS-COV-2, inside and on top of tunneling nanotubes

Coronavirus may enter the brain by building tiny tunnels from the nose

20 July 2022

How the virus behind covid-19 enters the brain was somewhat of a mystery, but new evidence hints it may build tiny tubes from nose cells to brain cells that it can shuttle through


A person waits at a drive-in covid-19 PCR test site in Miami, Florida, in May

Covid-19: What are the risks of catching the virus multiple times?

28 June 2022

A study suggests people who catch covid-19 at least twice have double the risk of dying from any cause and are three times as likely to be hospitalised in the next six months, compared with people who test positive just once


Coronavirus: How worried should we be about reports of reinfection?

Coronavirus: How worried should we be about reports of reinfection?

11 September 2020

A handful of people across the world appear to have caught the coronavirus twice, suggesting that immunity against the virus doesn’t last – and could potentially make second infections worse


R number

R number

19 May 2020

The basic reproduction number, also known as the R or R0, is the average number of people one person with an infectious disease will likely infect in the future.


A health worker at an Ebola treatment centre in Beni

Ebola epidemic in Democratic Republic of the Congo to be declared over

9 April 2020

The DRC’s Ebola epidemic will be declared over on 12 April but there’s little time to celebrate as the country pivots towards tackling the coronavirus


An illustration of coronavirus particles

Does a high viral load or infectious dose make covid-19 worse?

27 March 2020

Does being exposed to more virus particles mean you’ll develop more severe illness? Data suggests the relationship between infection and severity may be complex


How long does coronavirus stay on surfaces and can they infect you?

How long does coronavirus stay on surfaces and can they infect you?

25 March 2020

The coronavirus has been found to stick to surfaces for days – but you’re more likely to catch it when close to infected people, or possibly through droplets spread via plumbing and ventilation systems


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