The president of the Tokyo Olympic organizing body said Friday it has to "tighten" its anti-COVID-19 measures after two of the nine-member Ugandan delegation tested positive for the disease following their arrival in Japan.Seiko Hashimoto's comment came after a Ugandan man in his 50s, who tested positive for the coronavirus after arriving at Narita airport on Saturday, was found to be infected with the highly contagious Delta variant first detected in India.While the man has no symptoms, according to a health ministry official, the second member was found positive for the virus on Wednesday…READ FULL ARTICLE