In 1947 there was no cure for TB - doctors prescribed fresh air and a regular diet - but there was a new, experimental drug on the market, streptomycin.
2
如果当时科学家们的注意力集中在住房条件或饮食卫生方面,那么肺结核的原因就会被认定为这些因素。
If the focus of science at the time had been on housing, or healthy diets, the cause of tuberculosis might well have been determined to be these factors.
If scientists had been working with a different principle of inquiry, they might have noticed that most victims of tuberculosis were poor, and lived in crowded conditions, and had poor diets.