Instead she says what actually happened is probably closer to the much milder 1957 or 1968 pandemics.
VOA: standard.2010.01.18
And he hypothesized that they were getting the disease in cows, which the disease from cows that caused a milder disease than smallpox, and that protected them from getting the more severe forms of smallpox later.
他假定奶牛将这种疾病传染给挤奶女工,这种源自奶牛的疾病比天花更温和,它保护女工们,免受更为严重的天花感染
How can the unemployment rate continue to rise sharply while job losses are growing milder?
VOA: standard.2009.06.07
WHO says many countries have stopped counting the people with milder cases.
VOA: standard.2009.12.25
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