A breakdown of coronavirus risk by demographic factors

A lot about Covid-19 remains a mystery, but three months into the outbreak, experts now have a better sense of who seems to be vulnerable to the disease. Research thus far has shown that the disease is largely affecting those age 30 and older: 87% of China's cases are between 30 and 79, with fewer than 10% of infections in 20-somethings. Only around 1% were in teens and those younger than 9. Preliminary data seem to suggest that men may be more susceptible than women. As with other respiratory illnesses, those with underlying health conditions seem likelier to fall seriously ill from Covid-19. It's perhaps unsurprising, then, that the first major outbreak of the disease occurred in a nursing home, whose residents often have multiple health conditions. As of this morning, 18 people there had been diagnosed, with six deaths.