Q: In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.
Background 35 The reasons for the large differences between countries in the sizes of their SARS 36 CoV-2 epidemics is unknown. Individual level studies have found that the use of face 37 masks was protective for the acquisition and transmission of a range of respiratory 38 viruses including SARS CoV-1. We hypothesized that population level usage of face 39 masks may be negatively associated SARS CoV-2 spread. 40 41 At a country level, linear regression was used to assess the association between 43
A:
Widespread use of face masks in public may slow the spread of SARS CoV-2: 1 an ecological study 2 3 4