The World Health Organization (WHO) is considering naming future variants of the virus after the star configurations - think the Zodiac signs Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces - once the letters of the Greek alphabet have been exhausted. The suggestion has been made as a contingency amid fears that more and more variants of COVID-19 will continue to emerge, running through the 24 letters available. Dr Maria Van Kerkho