Among the top 20 countries with the most new cases at the moment, other than South Africa, Russia, and the US, they seem to all be developing countries outside

Among the top 20 countries with the most new cases at the moment, other than South Africa, Russia, and the US, they seem to all be developing countries outside Africa. So if African countries in general have had a good response, I wonder why it's spreading so rapidly in countries like India, Mexico, Chile, Pakistan, Saudi Arabia, Bangladesh, Peru, Colombia, Iran, etc...do they not respect the power of a pathogen?