Questioned about Covid-19 posing a threat to the Yatra, Tharoor pointed out that the walkathon will end less than a month later on January 26 and that till now the "messages coming" from experts were fairly reassuring. "The variants that have been doing so much damage in China have already been identified in India in June-July and have not caused any major calamity," he said while adding that the country still needed to be vigilant.