Austria has found four cases of the coronavirus mutation first detected in Britain and one case of the South African mutation, Franz Allerberger of public health agency AGES told a news conference on Monday.

Both Britain and South Africa have discovered new, more infectious variants in the coronavirus in recent weeks that have driven a surge in cases.

Allerberger said the four cases of the UK variant had been found in an Austrian man who arrived from London on Dec. 21, an Austrian 12-year-old girl who travelled from England on Dec. 18, and two Slovak children who are siblings, while the South African variant had been detected in a 30-year-old Austrian woman who returned from vacation in South Africa on Dec. 6.

(With input from agencies)