As the new variants of the COVID-19 are spreading around the world currently, it is time for all countries to step up cooperation in tackling these challenges.

The preventive measure is crucial in conducting COVID-19 prevention, control and treatment activities, and so the vaccine-producing countries are urged to trade, support and provide the needed assistance to other countries and developing countries for vaccine production.

Searching the origins of the coronavirus should be conducted scientifically for the treatment, and it should not blame or give political pressure on other countries.