Then they took a train to Shenzhen. On the other side of the border, almost nobody wore mask. When people saw my father with the mask, they were scared (thought he had SARS) and stayed away from him.
I wanted my parents to come to the US during that time to avoid contracting SARS. My parents thought it was a bad idea, because all travelers from Hong Kong had to be quarantined for a few days, and they could contract SARS during quarantine.
Fortunately SARS is all in the past now.