South Africa's president says the country is preparing for more hospital admissions, as the Omicron variant continues to spread to become a fourth wave of infections.<br />''<br />''In his weekly newsletter, President Cyril Ramaphosa says the number of daily infections has increased five- fold over the last week. He urges South Africans to get vaccinated, calling it an urgent priority that will also help economic recovery.<br />''<br />''Mr Ramaphosa also encourages the use of face masks, social distancing and avoiding crowds to reduce the spread of the virus.<br />''<br />''<br />''<br />