Doctors from the Amerikan Hastanesi hospital in Istanbul and local medical staff taking care for patients in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)

A patient on oxygen support in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)

Doctors from the Amerikan Hastanesi hospital in Istanbul and local medical staff taking care for patients in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)

A medic wearing full protective gear works with a patient on oxygen support in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)

Doctors from the Amerikan Hastanesi hospital in Istanbul and local medical staff pass through the corridor in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)

A medic wearing full protective gear works in the corridor in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)

A cuddly toy sits in the window of a closed cafe in the capital Sarajevo, Bosnia, Saturday, March 13, 2021. All non-essential shops, bars and restaurants closed over the weekend in Bosnia and Herzegovina and Serbia due to increased number of people infected with corona virus. (AP Photo/Eldar Emric)

Cuddly toys sit in a closed cafe in the capital Sarajevo, Bosnia, Saturday, March 13, 2021. All non-essential shops, bars and restaurants closed over the weekend in Bosnia and Herzegovina and Serbia due to increased number of people infected with corona virus. (AP Photo/Eldar Emric)

Doctors from the Amerikan Hastanesi hospital in Istanbul and local medical staff taking care for patients in the COVID-19 ward at a the General Hospital in the capital Sarajevo, Bosnia, Thursday, March 18, 2021. As Bosnia faces soaring coronavirus infections and rapidly-filling hospitals, two doctors from Turkey have arrived in Sarajevo to help and offer their insight in the treatment of COVID-19. Bosnia is seeing a huge rise in infections and hospitalizations after a period of relaxed measures and the winter season that saw ski resorts staying open unlike in most of Europe. (AP Photo)