A man receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 6, 2021. REUTERS/Niharika Kulkarni

Monira Abbas Bhagasrala, 53, receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 6, 2021. REUTERS/Niharika Kulkarni

A person wearing a protective face mask waits to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi

People wearing protective face masks wait to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi

People wearing protective face masks wait to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi

People wearing protective face masks wait to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi

A healthcare worker gives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, to a man inside a classroom of a school, which has been converted into a temporary vaccination centre, in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi

A healthcare worker gives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, to a woman inside a classroom of a school, which has been converted into a temporary vaccination centre, in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi

A healthcare worker gives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, to a woman inside a classroom of a school, which has been converted into a temporary vaccination centre, in New Delhi, India, May 4, 2021. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

Viral Kothari, 39, receives his first dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 3, 2021. REUTERS/Niharika Kulkarni

Nidhi Shah, 32, receives her first dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 3, 2021. REUTERS/Niharika Kulkarni

Vipin Jha, 20, receives his first dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 3, 2021. REUTERS/Niharika Kulkarni

Rohit Gupta, 27 and Nandani Gupta, 42, receive their first dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 3, 2021. REUTERS/Niharika Kulkarni

A man wearing a face shield receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 1, 2021. REUTERS/Francis Mascarenhas

A man receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 1, 2021. REUTERS/Francis Mascarenhas

A woman receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 1, 2021. REUTERS/Francis Mascarenhas

A woman reacts as she receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Mumbai, India, May 1, 2021. REUTERS/Francis Mascarenhas

A woman receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Ahmedabad, India, May 1, 2021. REUTERS/Amit Dave

People wearing protective face masks wait to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, outside a vaccination centre in Ahmedabad, India, May 1, 2021. REUTERS/Amit Dave

People wearing protective face masks wait to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, outside a vaccination centre in Ahmedabad, India, May 1, 2021. REUTERS/Amit Dave

People get their names registered after receiving a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Ahmedabad, India, May 1, 2021. REUTERS/Amit Dave

A healthcare worker gives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, to a woman at a hospital, in New Delhi, India, May 1, 2021. REUTERS/Adnan Abidi

A healthcare worker gives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, to a man at a hospital, in New Delhi, India, May 1, 2021. REUTERS/Adnan Abidi

A healthcare worker gives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, to a woman inside a classroom of a school, which has been converted into a temporary vaccination centre, in Ahmedabad, India, May 1, 2021. REUTERS/Amit Dave

A woman reacts as she receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Srinagar April 29, 2021. REUTERS/Sanna Irshad Mattoo

A man reacts as he receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, at a vaccination centre in Srinagar April 29, 2021. REUTERS/Sanna Irshad Mattoo

Mongiben Bhanusali Kataria, 70, receives the second dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, as Prakash Gavaphe, 64, waits for his turn at a vaccination centre in Mumbai, India, April 28, 2021. Picture taken April 28, 2021. REUTERS/Niharika Kulkarni

Pramila Shah, 82, receives the second dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, as Hansa Pandhi, 76, waits for her turn at a vaccination centre in Mumbai, India, April 28, 2021. Picture taken April 28, 2021. REUTERS/Niharika Kulkarni

New York Mayor Bill de Blasio speaks with Matthew Putman, co-founder and CEO of Nanotronics, during a facility tour before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard,, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

New York Mayor Bill de Blasio watches an employee manually assemble circuit board elements before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

An employee manually assembles a circuit-board element before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

An employee manually assembles a circuit-board element before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

New York Mayor Bill de Blasio takes a facility tour before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

New York Mayor Bill de Blasio speaks with Matthew Putman, co-founder and CEO of Nanotronics, before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

New York Mayor Bill de Blasio and Matthew Putman, co-founder and CEO of Nanotronics speak outside an assembly room before a ribbon-cutting ceremony to mark the opening of a Nanotronics manufacturing center at the Brooklyn Navy Yard, in the Brooklyn borough of New York, U.S., April 28, 2021. John Minchillo/Pool via REUTERS

Plastic tubing used in the manufacture of paint rollers are seen inside the Naylor Industries Wombwell site in Wombwell, Britain, April 27, 2021. Picture taken April 27. REUTERS/Phil Noble

A woman receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, as others wait for their turn at a vaccination centre in Mumbai, India, April 26, 2021. REUTERS/Niharika Kulkarni

A man receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, as others wait for their turn at a vaccination centre in Mumbai, India, April 26, 2021. REUTERS/Niharika Kulkarni

Belgium's Prime Minister Alexander De Croo, Pfizer CEO Albert Bourla, CMO and co-founder of German biotechnology company BioNTech Ozlem Tureci, European Commission President Ursula von der Leyen and Pfizer Manufacturing Belgium's Managing Director Luc Van Steenwinkel pose for a group photograph after a visit to oversee the production of the Pfizer-BioNtech COVID-19 vaccine at the factory of U.S. pharmaceutical company Pfizer in Puurs, Belgium April 23, 2021. John Thys /Pool via REUTERS

(R-L) Pfizer Manufacturing Belgium's Managing Director Luc Van Steenwinkel, Pfizer CEO Albert Bourla, German scientist, CMO and co-founder of BioNTech Ozlem Tureci, Belgium's Prime Minister Alexander De Croo and European Commission President Ursula von der Leyen oversee the production of the Pfizer-BioNtech COVID-19 vaccine during a visit at the company's factory in Puurs, Belgium April 23, 2021. John Thys /Pool via REUTERS

(L-R) European Commission President Ursula von der Leyen, Belgium's Prime Minister Alexander De Croo, German scientist, CMO and co-founder of BioNTech Ozlem Tureci, Pfizer CEO Albert Bourla and Pfizer Manufacturing Belgium's Managing Director Luc Van Steenwinkel oversee the production of the Pfizer-BioNtech COVID-19 vaccine during a visit at the company's factory in Puurs, Belgium April 23, 2021. John Thys /Pool via REUTERS

Managing Director of Devji, a major jewellery manufacture and retailer, Jaydeep Bharatji, speaks during an interview with Reuters at his company's headquarters in Hidd, Bahrain, April 20, 2021. Picture taken April 20, 2021. REUTERS/Hamad I Mohammed

Jewellery artisans manufacture gold jewellery at Devji, a major manufacturer and retailer, in Hidd, Bahrain, April 20, 2021. Picture taken April 20, 2021. REUTERS/Hamad I Mohammed

Jewellery artisans manufacture gold jewellery at Devji, a major manufacturer and retailer, in Hidd, Bahrain, April 20, 2021. Picture taken April 20, 2021. REUTERS/Hamad I Mohammed

Jewellery artisans manufacture gold jewellery at Devji, a major manufacturer and retailer, in Hidd, Bahrain, April 20, 2021. Picture taken April 20, 2021. REUTERS/Hamad I Mohammed

Notices about the shortage of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, are seen outside a COVID-19 vaccination centre in Mumbai, India, April 20, 2021. REUTERS/Francis Mascarenhas

SwatchPAY! watches, usable for pay-by-the-wrist contactless payments, are seen at the shop of Swiss watch manufacturer Swatch in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

Flik Flak children watches are seen at the shop of Swiss watch manufacturer Swatch in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

A newly opened shop of Swiss watch manufacturer Swatch is seen in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

SwatchPAY! watches, usable for pay-by-the-wrist contactless payments, are seen at the shop of Swiss watch manufacturer Swatch in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

A rice mill worker receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, during a COVID-19 vaccination drive at Bavla village on the outskirts of Ahmedabad, India, April 13, 2021. REUTERS/Amit Dave

Polymer 10-round 5.56mm NATO magazines, manufactured by Mission First Tactical, are displayed for sale at Firearms Unknown, a gun store in Oceanside, California, U.S., April 12, 2021. REUTERS/Bing Guan

A woman reacts as she receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, during the start of a four-day "Vaccination Festival" in Mumbai, India, April 11, 2021. REUTERS/Francis Mascarenhas

A woman reacts as she receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, during the start of a four-day "Vaccination Festival" in Mumbai, India, April 11, 2021. REUTERS/Francis Mascarenhas

A metal folding robot named Kunjabot is seen at the innovation lab called Gearbox for entrepreneurs and artisans, at the Industrial area in Nairobi, Kenya March 15, 2021. Picture taken March 15, 2021. REUTERS/Jackson Njehia

A metal folding robot named Kunjabot is seen at the innovation lab called Gearbox for entrepreneurs and artisans, at the Industrial area in Nairobi, Kenya March 15, 2021. Picture taken March 15, 2021. REUTERS/Jackson Njehia

Electrical components of a circuit board are seen as it comes out of the Surface-mount technology (SMT) line at the innovation lab called Gearbox for entrepreneurs and artisans, at the Industrial area in Nairobi, Kenya March 15, 2021. Picture taken March 15, 2021. REUTERS/Jackson Njehia

Latif Cherono, electronics manufacturing manager at the innovation lab called Gearbox for entrepreneurs and artisans, works on the Surface-mount technology (SMT) line at the Industrial area in Nairobi, Kenya March 15, 2021. Picture taken March 15, 2021. REUTERS/Jackson Njehia

Latif Cherono, electronics manufacturing manager at the innovation lab called Gearbox for entrepreneurs and artisans, works on the Surface-mount technology (SMT) line at the Industrial area in Nairobi, Kenya March 15, 2021. Picture taken March 15, 2021. REUTERS/Jackson Njehia

Reels containing electrical components are seen on the Surface-mount technology (SMT) line at the innovation lab called Gearbox for entrepreneurs and artisans, at the Industrial area in Nairobi, Kenya March 15, 2021. Picture taken March 15, 2021. REUTERS/Jackson Njehia