Nurse Meltem Gulcan, center left, talks to local residents about the importance of anti COVID-19 vaccination, in the village of Gokce, in the district of Mardin, a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. The health worker is part of Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population. (AP Photo/Mehmet Guzel)

Enver Ereli, 59, center, a municipal sanitation worker, looks on Dr. Aysegul Duyan, prepares to vaccinate him against COVID-19 , after persuading him at the medieval city of Mardin, in the culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. "I was afraid of getting sick and of being paralyzed. But then the medical teams told me it was for my benefit and I believed them and got vaccinated," Ereli said. It was the team's first successful effort of the day. The government has set up teams whose job is to persuade people in age groups eligible for the vaccine but who have been reluctant to get jabbed. (AP Photo/Mehmet Guzel)

Nurse Meltem Gulcan, left, talks to local residents about the importance of anti COVID-19 vaccination, in the village of Gokce, in the district of Mardin, a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. The health worker is part of Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population. (AP Photo/Mehmet Guzel)

A view of the medieval city of Mardin, in a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. Health workers, part of Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population visited the greater area. (AP Photo/Mehmet Guzel)

Sare Oncel, 75, left, is administered a dose of the CoronaVac vaccine made by China's Sinovac Biotech Ltd., by nurse Meltem Gulcan, at her house in the village of Gokce, in the district of Mardin, a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. "Everyone kept telling me that I'd be paralyzed and die if I got the vaccine. So I refused and didn't get it," Oncel said. "But the government sent us the doctors and they talked us into it and I got vaccinated." The government has set up teams whose job is to persuade people in age groups eligible for the vaccine but who have been reluctant to get jabbed. (AP Photo/Mehmet Guzel)

Hadra Irmak, 79, center, looks on as Dr. Aysegul Duyan, right, and nurse Meltem Gulcan, prepare after they persuaded her to get vaccinated against COVID-19 at the medieval city of Mardin, in the culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. The government has set up teams whose job is to persuade people in age groups eligible for the vaccine but who have been reluctant to get jabbed. (AP Photo/Mehmet Guzel)

Suleyman Balinan, 52, center, looks on as Dr. Aysegul Duyan, center and nurse Meltem Gulcan, right, try to persuade him to get vaccinated against COVID-19 at the medieval city of Mardin, in the culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. Balinan was persuaded and got vaccinated by the team. The government has set up teams whose job is to persuade people in age groups eligible for the vaccine but who have been reluctant to get jabbed. (AP Photo/Mehmet Guzel)

Children pose for the photographer as they play with a goat, during a visit by health workers trying to persuade local residents to get vaccinated for COVID-19 in the village of Gokce, in the district of Mardin, a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population visited the greater area. (AP Photo/Mehmet Guzel)

Eren Guldiken, 19, poses for a photograph in the medieval city of Mardin, in a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. Health workers, part of Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population. (AP Photo/Mehmet Guzel)

Nurse Meltem Gulcan prepares a dose of the CoronaVac vaccine made by China's Sinovac Biotech Ltd., to vaccinate Ismail Oncel, 76, at his house in the village of Gokce of the district of Mardin, a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. The health worker is part of Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population. (AP Photo/Mehmet Guzel)

Enver Ereli, 59, seated right, a municipal sanitation worker, looks on Dr. Aysegul Duyan, left, and nurse Meltem Gulcan, center, try to persuade him to get vaccinated against COVID-19 at the medieval city of Mardin, in the culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021."I was afraid of getting sick and of being paralyzed. But then the medical teams told me it was for my benefit and I believed them and got vaccinated," Ereli said. It was the team's first successful effort of the day. (AP Photo/Mehmet Guzel)

Ismail Oncel, 76, right, is administered a dose of the CoronaVac vaccine made by China's Sinovac Biotech Ltd., by nurse Meltem Gulcan at his house in the village of Gokce, in the district of Mardin, a culturally and historically diverse region in Turkey's south, overlooking Mesopotamia and bordering Syria, Friday, May 21, 2021. The health worker is part of Turkey's 'vaccination persuasion' teams, a recent initiative that aims to promote inoculation against the coronavirus among the country's most vulnerable population. (AP Photo/Mehmet Guzel)