The shoes of health workers are seen covered in personal protective equipment (PPE) while conducting tests on residents for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

Health workers in personal protective equipment (PPE) stand outside a property while conducting tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

Health workers in personal protective equipment (PPE) talk to a resident while conducting tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

A health worker in personal protective equipment (PPE) takes the temperature of a resident while conducting tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

A health worker in personal protective equipment (PPE) takes blood samples while conducting tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

A health worker in personal protective equipment (PPE) talks to a resident while conducting tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

Health workers in personal protective equipment (PPE) are seen on the street while conducting tests on residents for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

A woman looks at health workers in personal protective equipment (PPE) as they conduct tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

A health worker in personal protective equipment (PPE) shows a blood sample from a resident, while conducting tests for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

Health workers in personal protective equipment (PPE) are seen on the street while conducting tests on residents for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

Health workers in personal protective equipment (PPE) are seen on the street before taking samples from residents to test them for the coronavirus disease (COVID-19), in the neighbourhood of El Tejar, in La Paz, Bolivia July 5, 2020. REUTERS/Manuel Claure

Soccer Football - Serie A - Lazio v AC Milan - Stadio Olimpico, Rome, Italy - July 4, 2020 Referee Gianpaolo Calvarese tests the goal line technology before the match, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) REUTERS/Alberto Lingria

Soccer Football - Serie A - Lazio v AC Milan - Stadio Olimpico, Rome, Italy - July 4, 2020 Referee Gianpaolo Calvarese tests the goal line technology before the match, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) REUTERS/Alberto Lingria

A woman gets her finger inked before getting her test done at a school which was turned into a centre to conduct tests for the coronavirus disease (COVID-19), amid the spread of the disease, in New Delhi, India July 4, 2020. REUTERS/Adnan Abidi

A health worker in personal protective equipment (PPE) puts a swab sample into a vial at a school which was turned into a centre to conduct tests for the coronavirus disease (COVID-19), amid the spread of the disease, in New Delhi, India July 4, 2020. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

A man carries his daughter as they wait at a local health centre to conduct tests for the coronavirus disease (COVID-19), amid the spread of the disease, in New Delhi, India July 4, 2020. REUTERS/Adnan Abidi

A health worker in personal protective equipment (PPE) collects a sample using a swab from a girl at a local health centre to conduct tests for the coronavirus disease (COVID-19), amid the spread of the disease, in New Delhi, India July 4, 2020. REUTERS/Adnan Abidi

A health worker in personal protective equipment (PPE) collects a sample using a swab from a woman at a local health centre to conduct tests for the coronavirus disease (COVID-19), amid the spread of the disease, in New Delhi, India July 4, 2020. REUTERS/Adnan Abidi

Comedian Carl Hutchinson is seen as workers perform tests during the audition and set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A worker performs tests during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A worker performs tests during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A worker performs tests during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A worker tests a microphone during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A worker tests a microphone holder during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

Workers test the lighting during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

Workers test the lighting during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A person tests the lighting during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A man tests the lighting during the set-up for the "Live at the Tyne: An Evening of Comedy" show, which will be streamed online from the Tyne Theatre & Opera House, following the coronavirus disease (COVID-19) outbreak, in Newcastle-upon-Tyne, Britain, July 3, 2020. REUTERS/Lee Smith

A girl reacts as a healthcare worker, sitting inside an ambulance, takes a swab from her to test for the coronavirus disease (COVID-19) in Kolkata, India, July 3, 2020. REUTERS/Rupak De Chowdhuri TPX IMAGES OF THE DAY

A medical staff wearing personnel protective equipment (PPE) is seen at the COVID-19 testing laboratory at Bangkok's Suvarnabhumi International airport amid the spread of the coronavirus disease (COVID-19), Thailand, June 3, 2020. REUTERS/Athit Perawongmetha

A doctor and medical staffs wearing personnel protective equipment (PPE) demonstrate the lab workflow at the COVID-19 testing laboratory at Bangkok's Suvarnabhumi International airport amid the spread of the coronavirus disease (COVID-19), Thailand, June 3, 2020. REUTERS/Athit Perawongmetha

Medical staffs wearing personnel protective equipment (PPE) are seen before working at the COVID-19 testing laboratory at Bangkok's Suvarnabhumi International airport amid the spread of the coronavirus disease (COVID-19), Thailand, June 3, 2020. REUTERS/Athit Perawongmetha

A health worker collects a swab of a woman during a coronavirus test in the Mugda Medical College and Hospital as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

A health worker collects a swab of a man during a coronavirus test in the Mugda Medical College and Hospital as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

A man wearing a protective mask consults a doctor over video call as he comes for a coronavirus test in the Mugda Medical College and Hospital as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

People wait in the queue outside of a coronavirus testing center as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

People wait in the queue outside of a coronavirus testing center as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

People sit as they come to a coronavirus testing center in the Mugda Medical College and Hospital as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

People wait in the queue outside of a coronavirus testing center as the coronavirus disease (COVID-19) outbreak continues in Dhaka, Bangladesh, July 2, 2020. REUTERS/Mohammad Ponir Hossain

Healthcare workers in protective gear sit inside an ambulance as they leave after collecting swab samples to be tested for the coronavirus disease (COVID-19) at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

Healthcare workers in protective gear chat inside an ambulance after collecting swab samples to be tested for the coronavirus disease (COVID-19) at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

A healthcare worker in protective gear collects a swab sample to be tested for the coronavirus disease (COVID-19) from a civil servant at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

Healthcare workers in protective gear prepare to leave after collecting swab samples to be tested for the coronavirus disease (COVID-19) at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

A healthcare worker in protective gear carries a box containing swab samples to be tested for the coronavirus disease (COVID-19) at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

Healthcare workers in protective gear prepare to leave after collecting swab samples to be tested for the coronavirus disease (COVID-19) at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

A healthcare worker in protective gear collects a swab sample to be tested for the coronavirus disease (COVID-19) from a civil servant at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

A healthcare worker in protective gear looks down while preparing a test for the coronavirus disease (COVID-19) at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

A healthcare worker in protective gear collects a swab sample to be tested for the coronavirus disease (COVID-19) from a man at a traditional textile market in Jakarta, Indonesia, July 2, 2020. REUTERS/Willy Kurniawan

An employee of the Ministry of Health wearing protective gear talks to a man wearing a face mask who will undergo a rapid test for the coronavirus disease (COVID-19), in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

Employees of the Ministry of Health wearing protective gear talk to people wearing face masks who will undergo a rapid test for the coronavirus disease (COVID-19), in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

An employee of the Ministry of Health wearing protective gear talks to a woman wearing a face mask who will undergo a rapid test for the coronavirus disease (COVID-19), in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

An employee of the Ministry of Health wearing protective gear talks to a man wearing a face mask who will undergo a rapid test for the coronavirus disease (COVID-19), in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

A medical team member takes a swab sample from a man to test for the coronavirus disease (COVID-19) in one of the areas with the most infections in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

A medical team member takes a swab sample from a man to test for the coronavirus disease (COVID-19) in one of the areas with the most infections in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

A medical team of the health secretary is seen inside a tent where rapid tests for the coronavirus disease (COVID-19) are taken, in one of the areas with the most infections in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

A medical team member takes a swab sample from a girl to test for the coronavirus disease (COVID-19) in one of the areas with the most infections in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

A medical team member takes a swab sample from a man to test for the coronavirus disease (COVID-19) in one of the areas with the most infections in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

An employee of the Ministry of Health wearing protective gear talks to a woman wearing a face mask who will undergo a rapid test for the coronavirus disease (COVID-19), in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez

A medical team member takes a swab sample from a woman to test for the coronavirus disease (COVID-19) in one of the areas with the most infections in Bogota, Colombia July 1, 2020. REUTERS/Luisa Gonzalez