The omicron variant of COVID-19 has pushed some states to bring in extra restrictions on overseas arrivals, or even tighten rules for arrivals from other states that have relaxed or reopened international borders.

Arrivals from nine African countries, South Africa, Namibia, Zimbabwe, Botswana, Lesotho, Eswatini, Seychelles, Malawi and Mozambique must undergo 14 days quarantine under federal guidelines.