The death of a 13-year-old in Britain from coronavirus has understandably led to fears that the virus may not be so harmless for children as first thought.
Up to now, youngsters have seemed largely immune from Covid-19, with most cases involving people over 60, or those with underlying health conditions.
Yet teenager Ismail Mohamed Abdulwahab, from Brixton, south London, who died earlier this week, appears to have had no apparent health issues.
So should parents be more worried?
The latest number-crunching seems to suggest not. For the first time, scientists at Imperial College London have modelled the death rates for the virus by factoring in less serious cases that will never trouble the NHS. And it makes for illuminating reading.
Looking at more than 70,000 cases in China, they discovered that, although the overall death rate for those testing positive was 1.3 per cent, or about one in 77 cases, once mild cases were included, the fatality rate fell dramatically to 0.66 per cent, or one in 152 cases.
The same reduced risk holds true for all age ranges, and it means that the chance of dying for children contracting coronavirus is miniscule, approximately 0.0069 per cent for 10 to 29 year olds - or one in 14,492.
For under-10s, there is even less risk, around 0.0016 per cent, or one in 62,500 (scroll down for chart featuring a full breakdown of risk by age range).
Prof Azra Ghani of Imperial College said: "There might be outlying cases that get a lot of media attention.
"But our analysis very clearly shows that at aged 50 and over, hospitalisation is much more likely than in those under 50, and a greater proportion of cases are likely to be fatal.”"
For people in their 20s, the death rate is still low - about one in 1,666, and even for the most at-risk group, new calculations suggest it is around one in 12, rather than one in seven.
The new research shows that, for those in their 30s, the risk of death is around one in 1,190. For people in their 40s it's approximately one in 625, and for those in their 50s, it's one in 169. For people in their 60s, it rises to nearly one in 50. Over 70s have roughly a one in 23 risk of death.
Prof Neil Ferguson from Imperial said the British figures appeared to mirror China and were likely to be similar.
"As the UK epidemic unfolds, more data are becoming available, and at the moment the proportion of people in each age group most likely to require hospitalisation, and most likely to die from infection, are consistent with the estimates in this study," he said.
It has been reported that Ismail suffered a cardiac arrest, and the case has been referred to the coroner. Experts said it may turn out that the youngster had an unknown underlying condition that made him more vulnerable.
In recent years, several young and seemingly healthy sports stars have been found to have genetic conditions that put their hearts at risk.
New research has shown that coronavirus causes a surge in inflammation, which can cause cardiac problems, and the authors warned that those with heart issues were at great risk.