ISLAMABAD, April 11 (Xinhua) -- Wearing protective suits, Pakistani medical staff members collect samples for screening test of COVID-19 at a residential area during lockdown on the outskirts of Islamabad. 

[caption id="" align="alignnone" width="900"] A medical staff member wearing a protective suit writes down details during screening test on the outskirts of Islamabad, capital of Pakistan on April 10, 2020. (Xinhua/Ahmad Kamal)[/caption] [caption id="" align="alignnone" width="900"] Medical staff members prepare to conduct screening test of COVID-19 at a residential area during lockdown on the outskirts of Islamabad, Pakistan, on April 10, 2020. (Xinhua/Ahmad Kamal)[/caption] [caption id="" align="alignnone" width="900"] A medical staff member wearing a protective suit collects samples for screening test of COVID-19 on a street during lockdown on the outskirts of Islamabad, Pakistan, on April 10, 2020. (Xinhua/Ahmad Kamal)[/caption] [caption id="" align="alignnone" width="900"] Medical staff members wearing protective suits stand on a street during lockdown on the outskirts of Islamabad, Pakistan, on April 10, 2020. (Xinhua/Ahmad Kamal)[/caption] [caption id="" align="alignnone" width="900"] Medical staff members wearing protective suits stand on a street during lockdown on the outskirts of Islamabad, Pakistan, on April 10, 2020. (Xinhua/Ahmad Kamal)■[/caption]