LONDON (AP) – South African scientists identified a new version of the coronavirus this week that they say is behind a recent spike in COVID-19 infections in Gauteng, the country’s most populous province. It’s unclear where the new variant emerged, but scientists in South Africa first alerted the World Health Organization and it has also been seen in Botswana and travelers to Hong Kong, Belgium, Israel and elsewhere. Health minister Joe Phaahla said the variant was linked to an “exponential rise” of cases in the last few days, although experts are still trying to determine if the new variant is actually responsible. In a statement on Friday, the WHO designated it as a “variant of concern,” naming it “omicron.”