In recent weeks there has been a drop in the number of coronavirus cases in the world.
What is this about?
Can you talk about a trend?
Dr. Elmer Huerta, an expert in public health issues, explains this phenomenon.
Here, his words.
Covid-19: why is the number of cases decreasing in the world? | Video | CNN
2021-02-24T21:23:09.690Z
In recent weeks there has been a drop in the number of coronavirus cases in the world. What is this about? Can you talk about a trend? The | CNN
