Hong Kong and Ecuador are the two latest destinations to tighten their entry rules in the face of the new variant of concern, omicron.
Stricter border controls and harsher quarantine rules are being introduced across the globe in response to the new variant.
Hong Kong is barring non-residents from Angola, Ethiopia, Nigeria and Zambia, as well as all travellers who have visited Australia, Austria, Belgium, Canada, the Czech Republic, Denmark, Germany, Israel, and Italy in the past 21 days.
Meanwhile Ecuador has closed its borders to arrivals from South Africa, Botswana, Egypt, Mozambique, Lesotho, Zimbabwe, Eswatini and Namibia.
This follows Hong Kong banning arrivals from eight southern African countries last week.
From today, the UK government is demanding PCR tests for travel, just weeks after cheaper antigen (or lateral flow) tests were permitted.
PCR tests are vital for genomic sequencing, the process needed to detect the variant of the virus which causes each infection.
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