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Two Omicron coronavirus cases found in Germany
By Madeline Chambers
WHO skips two letters in alphabet in naming Omicron variant
By Mark Lungariello & Jon Levine
Omicron: South Africa blasts travel bans as hospitals see surge of younger COVID patients.
By Daniel Politi
How variants like omicron develop and what makes them variants 'of concern'
By Jon Schuppe & Chantal Da Silva
UK, Germany, Italy confirm cases of Omicron coronavirus variant
By Mersiha Gadzo & Farah Najjar
UK, Germany and Italy detect Omicron variant cases, Israel closes borders
By Costas Pitas, Toby Sterling & Madeline Chambers