In Argentina, the first case of the omicron strain was detected in a returning from South Africa, he was vaccinated 
The first case of infection with the omicron strain of coronavirus in Argentina, a fully vaccinated traveler was infected. This is reported by TASS with reference to the Ministry of Health of the republic.
“On December 5, the National Control Laboratory confirmed the first case of infection with the omicron strain in Argentina in a traveler traveling from South Africa,” the ministry noted.
The department clarified that the citizen returned from South Africa through the United States on November 30. Both tests that he did before departure and upon arrival showed negative results. All this time he was in quarantine, on December 2 he did a second test, which showed a positive result.
According to the Ministry of Health, the traveler was completely vaccinated against coronavirus, now he has no symptoms of the disease.
< p> On December 3, it was reported that a Greek citizen who contracted the omicron strain of coronavirus was fully vaccinated against COVID-19. The 60-year-old businessman arrived from South Africa to Crete through one of the European countries.
Earlier, the WHO assessed the course of COVID-19 in those infected with the omicron strain. Experts concluded that those infected with the new strain carry COVID-19 in a milder form. According to scientists, this is due to the fact that the process of going through the entire cycle – from infection to complete recovery – takes longer.
A new strain of coronavirus under the code B.1.1.529 was detected in South Africa on November 11. The first confirmed cases of infection were recorded on November 24. The strain was named with the Greek letter “omicron” and have already managed to recognize its danger at the WHO level.