在澳大利亚和新西兰，冠状病毒病例中，年轻人占很大的比例

[lindamy]

7 hr 59 min ago
In Australia and New Zealand, a large proportion of coronavirus cases are in young people

A health worker conducts tests at a coronavirus testing center in Adelaide, Australia on March 11. Tracey Nearmy/Getty Images

In Australia and New Zealand, there's a high proportion of young people among those diagnosed with coronavirus.
According to Australian government statistics:

• 21% of confirmed cases are aged 20 to 29
• 16% of cases are aged 30 to 39
• 31% of cases are 60 or older

In New Zealand:

• 26% of confirmed cases are aged 20 to 29
• 14% of cases are aged 30 to 39
• 21% of cases are 60 or older

For comparison, a report issued by the United States Centers for Disease Control and Prevention that analyzed the cases of 2,500 patients in the US whose ages were known, found that:

• 29% were aged 20 to 44
• 18% were aged 55 to 64
• 25% were aged 65 to 84

So why is there a high proportion of cases among younger people in Australia and New Zealand?
One reason could be travel. In both New Zealand and Australia, the vast majority of cases are connected with overseas travel or links to known cases, meaning there is limited transmission in the community. Professor Peter Collignon, an infectious disease expert from the Australian National University, said the Australian data was a reflection of the demographics engaging in overseas travel, according to a report in The Guardian.