The new rules will apply from 24 July and those failing to comply will face a fine of up to £100.
Llamas' specially evolved small antibodies are the basis for a coronavirus treatment breakthrough.
A hairdressing salon is using its bond with customers to help them with mental health issues.
The father of a five-year-old who died from cancer says he is proud she could help researchers.
"Targeted action" means outbreaks are being swiftly dealt with, the health secretary says.
Dr John Wright on two young patients seen at Bradford Royal Infirmary's Covid-19 "survivors' clinic".
It is one of several restrictions introduced by President Ramaphosa amid rising infection rates.
A 24-hour tally of 15,299 new coronavirus cases eclipses the worst rates seen in New York in April.
The government is considering making face coverings mandatory in shops in England, sources say.
Labour says the government must "come clean" on PPE procurement process after £120m face shield deals.
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