4 fully vaccinated individuals, who were not from Botswanna. Africa enjoys a little over 6% vaccination rate, and due to Malaria, consumes Hydroxychloroquine (or similar) almost daily. Hence, between their natural immune response, the heightened levels of zinc in their bodies - they were proactively taking treatment for COVID, and quickly reached Herd Immunity.

But, they dared to turn down a COVID shipment on Nov 24th, almost miraculously there were 4 visitors to their country diagnosed (even though no diagnostic tests exist for the new variant) with a variant; and almost overnight, they have had all flights to their country shut down.

This is not to protect anyone, because the symptoms are a sore muscles, and feeling "tired" for a few days - it's to punish a country that dared to say "no" to a vaccine mandate.