An empty street is seen in Gaborone, capital of Botswana, on April 3, 2020. Botswana has begun its 28-day lockdown period in implementing tough anti-virus measures, with almost empty streets and very limited economic activity happening. (Photo by Tshekiso Tebalo/Xinhua)

Few people are seen at a station in Gaborone, capital of Botswana, on April 3, 2020. Botswana has begun its 28-day lockdown period in implementing tough anti-virus measures, with almost empty streets and very limited economic activity happening. (Photo by Tshekiso Tebalo/Xinhua)

A man wearing a face mask walks on Gaborone train station bridge in Gaborone, capital of Botswana, on April 3, 2020. Botswana has begun its 28-day lockdown period in implementing tough anti-virus measures, with almost empty streets and very limited economic activity happening. (Photo by Tshekiso Tebalo/Xinhua)