A health worker prepares to administer the Sinovac COVID-19 vaccines at a vaccination center at Sunway Medical centre in Sunway, outskirt of Kuala Lumpur, Malaysia, Friday, June 4, 2021. (AP Photo/Vincent Thian)
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A man receive a Sinovac COVID-19 vaccines at a vaccination center at Sunway Medical centre in Sunway, outskirt of Kuala Lumpur, Malaysia, Friday, June 4, 2021. (AP Photo/Vincent Thian)
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A health worker holds a vial of Sinovac COVID-19 vaccine at a vaccination center at Sunway Medical centre in Sunway, outskirt of Kuala Lumpur, Malaysia, Friday, June 4, 2021. (AP Photo/Vincent Thian)
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A teacher receives the Sinovac Covid-19 coronavirus vaccine during a mass vaccination at a junior high school in Banda Aceh on June 4, 2021. (Photo by CHAIDEER MAHYUDDIN / AFP)
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A teacher receives the Sinovac Covid-19 coronavirus vaccine during a mass vaccination at a junior high school in Banda Aceh on June 4, 2021. (Photo by CHAIDEER MAHYUDDIN / AFP)
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A teacher receives the Sinovac Covid-19 coronavirus vaccine during a mass vaccination at a junior high school in Banda Aceh on June 4, 2021. (Photo by CHAIDEER MAHYUDDIN / AFP)
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A man reacts as he receives the Sinovac Covid-19 coronavirus vaccine during a mass vaccination at a junior high school in Banda Aceh on June 4, 2021. (Photo by CHAIDEER MAHYUDDIN / AFP)
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Teachers sit in a queue before receiving the Sinovac Covid-19 coronavirus vaccine during a mass vaccination at a junior high school in Banda Aceh on June 4, 2021. (Photo by CHAIDEER MAHYUDDIN / AFP)
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Teachers sit in a queue before receiving the Sinovac Covid-19 coronavirus vaccine during a mass vaccination at a junior high school in Banda Aceh on June 4, 2021. (Photo by CHAIDEER MAHYUDDIN / AFP)
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A man receives the first shot the Sinovac COVID-19 vaccine from a paramedic at a vaccination center, in Lahore, Pakistan, Thursday, June 3, 2021. (AP Photo/K.M. Chaudary)
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A woman receives the first shot the Sinovac COVID-19 vaccine from a paramedic at a vaccination center, in Lahore, Pakistan, Thursday, June 3, 2021. (AP Photo/K.M. Chaudary)
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Heath workers register woman before they can be vaccinated with the Sinovac COVID-19 vaccine at a vaccination center, in Lahore, Pakistan, Thursday, June 3, 2021. (AP Photo/K.M. Chaudary)
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A woman receives a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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A man receives a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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People wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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People wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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People wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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People wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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People wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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People wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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Women wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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Women wait for their turn to receive a dose of the Covid-19 coronavirus Sinovac vaccine at a vaccination camp organised at expo centre in Karachi on June 3, 2021, as the head of a Pakistani province ordered that government employees who refuse to be vaccinated would not be paid from next month. (Photo by Asif HASSAN / AFP)
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This photo taken on June 3, 2021 shows a health worker administering the Sinovac Covid-19 coronavirus vaccine to a resident in Rongan, in China's southern Guangxi region. (Photo by STR / AFP) / China OUT
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This photo taken on June 3, 2021 shows a resident receiving a Sinovac Covid-19 coronavirus vaccine in Rongan, in China's southern Guangxi region. (Photo by STR / AFP) / China OUT
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This photo taken on June 3, 2021 shows residents queueing to receive the Sinovac Covid-19 coronavirus vaccine in Rongan, in China's southern Guangxi region. (Photo by STR / AFP) / China OUT
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This photo taken on June 3, 2021 shows a health worker administering the Sinovac Covid-19 coronavirus vaccine to a resident in Rongan, in China's southern Guangxi region. (Photo by STR / AFP) / China OUT
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This photo taken on June 3, 2021 shows a resident receiving a Sinovac Covid-19 coronavirus vaccine in Rongan, in China's southern Guangxi region. (Photo by STR / AFP) / China OUT
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This photo taken on June 3, 2021 shows residents queueing to receive the Sinovac Covid-19 coronavirus vaccine in Rongan, in China's southern Guangxi region. (Photo by STR / AFP) / China OUT