Sent_en: 2zh It had been feared yesterday that four race horses at Randwick Racecourse in Sydney had been struck down by the virus, but the horses later tested negative to the virus.
Sent_yy: 人们昨天还担心在悉尼兰德威克赛马场的4匹赛马已感染了病毒，但是这几匹马后来经检测均未感染病毒。