It’s clear that the virus that causes Covid-19 travels freely. It needs no visa, having breached many points of entry. Experts at Imperial College London estimate that “in the absence of interventions, Covid-19 would have resulted in 7 billion infections and 40 million deaths globally this year.” Now is the time for governments to get ahead of the curve and respond to the emergency. It’s time to take a whole-of-government approach to strengthen testing at points of entry and institute mass testing at various points as South Korea did.

As we have seen over recent weeks, the impact of Covid-19 has caused unprecedented disruption, deaths, and confusion in developed countries. The public health capacity of countries such as the United States and UK has been overwhelmed. 

The front lines in the battle to limit damage from the new coronavirus are expanding.

Covid-19, the disease caused by the virus, emerged in China and then blossomed in comparatively wealthy countries like Italy, South Korea, and the United States.

Now, the virus is spreading in poorer regions — in sub-Saharan Africa, South Asia, and parts of Latin America — where essential defensive measures against infectious disease are often missing.