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The CDC also raised its advice to Hong Kong one rung to Level 2, citing a “moderate level” of coronavirus. The CDC said unvaccinated travelers with a higher
risk of severe illness from Covid-19 should avoid non-essential travel to Hong Kong. The advice is puzzling for Hong Kong. The city has seen fewer than 10 cases a day since late August, and there hasn’t been a locally-transmitted infection in Hong Kong since mid-August, data show. The hub is also yet to experience an outbreak of the delta variant.