Four generations of the Garg family live in a four-story building in Delhi, India. In May, Mukul Garg wrote in a blog post that his 57-year-old uncle had gotten the coronavirus, probably after exposure during a routine grocery run. From there, he told the BBC, 10 other family members caught it too, turning his home into a sick ward overnight.
Research shows, unsurprisingly, that household outbreaks like this fuel coronavirus transmission within communities.
“The role of households in overall societal transmission is quite significant,” Yang Yang, a biostatistician at the University of Florida, told Business Insider.
It follows, then, that disparities in household sizes between countries could partially explain their differing outcomes.
Take Sweden, where more than half of households consist of just one person. Roughly one-third of Sweden’s elderly population lives alone, compared to one-fifth of elderly residents in Greece or Spain. Sweden also has a lower proportion of