1.There has been a lot of talk about whether or not face masks are effective in helping slow down the spread of the COVID-19 coronavirus.
spread 传播
The conditions are ripe for the spread of disease.
这种疾病传播的条件已经成熟 。
2....and give a little protection to those who have not contracted it.
contract 感染
He contracted AIDS from a blood transfusion
他因为输血而感染了艾滋病 。