Commuters ride amid the fumigation vapour cloud, that is being sprayed to stem the spread of Dengue virus, during a fumigation drive by Sindh Solid Waste Management Board in Lyari neighborhood Karachi, Pakistan October 6, 2021. REUTERS/Akhtar Soomro

Street dog Boji, a regular user of commuter ferries, buses, metro trains, and trams, is pictured on a ferry which runs between the city's Asian and European sides, in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains, and trams, is pictured on a ferry which runs between the city's Asian and European sides, in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains and trams, sits on a tram in the Kadikoy district in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains, and trams, sits on a tram in the Kadikoy district in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains and trams, lies on the ground in front of the Besiktas pier in the Kadikoy district in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains, and trams, sits in a ferry which runs between the city's Asian and European sides, in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains, and trams, sleeps on a ferry which runs between the city's Asian and European sides, in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains, and trams, sleeps on a ferry which runs between the city's Asian and European sides, in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Street dog Boji, a regular user of commuter ferries, buses, metro trains and trams, lies on the floor of a tram in Kadikoy district in Istanbul, Turkey October 5, 2021. Picture taken October 5, 2021. REUTERS/Murad Sezer

Commuters walk on the Likoni floating bridge connecting the mainland and the island easing traffic on the ferry services to curb the spread of the coronavirus disease (COVID-19) in Mombasa, Kenya, September 29, 2021. REUTERS/Monicah Mwangi

Commuters walk on the Likoni floating bridge connecting the mainland and the island easing traffic on the ferry services to curb the spread of the coronavirus disease (COVID-19) in Mombasa, Kenya, September 29, 2021. REUTERS/Monicah Mwangi

Commuters walk on the Likoni floating bridge connecting the mainland and the island easing traffic on the ferry services to curb the spread of the coronavirus disease (COVID-19) in Mombasa, Kenya, September 29, 2021. REUTERS/Monicah Mwangi

Women walk through Toronto's PATH, the world's biggest underground shopping mall that runs under the city's major downtown office buildings, in Toronto, Ontario, Canada September 28, 2021. Picture taken September 28, 2021. REUTERS/Chris Helgren

Commuters enter Toronto's PATH, the world's biggest underground shopping mall that runs under the city's major downtown office buildings, in Toronto, Ontario, Canada September 28, 2021. Picture taken September 28, 2021. REUTERS/Chris Helgren

Commuters wearing masks to avoid contracting the coronavirus disease (COVID-19) walk on a zebra crossing in Seoul, South Korea, September 24, 2021. REUTERS/Kim Hong-Ji

Commuters leave a train station during the coronavirus disease (COVID-19) outbreak, in Singapore, September 23, 2021. REUTERS/Edgar Su

Commuters leave a train station during the coronavirus disease (COVID-19) outbreak, in Singapore, September 23, 2021. REUTERS/Edgar Su

Commuters leave a train station during the coronavirus disease (COVID-19) outbreak, in Singapore, September 23, 2021. REUTERS/Edgar Su

Commuters wear protective face masks at the Circular Quay train station during a lockdown to curb the spread of a coronavirus disease (COVID-19) outbreak in Sydney, Australia, September 22, 2021. REUTERS/Loren Elliott

Commuters drive during rush hour on the highway in Paris suburb, France, September 8, 2021. REUTERS/Eric Gaillard

Commuters drive during rush hour on the highway in Paris suburb, France, September 8, 2021. REUTERS/Eric Gaillard

Commuters drive during rush hour on the highway in Paris suburb, France, September 8, 2021. REUTERS/Eric Gaillard

Commuters walk through Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters walk through Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters walk through Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters walk through Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters walk through Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters walk through Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Commuters stand on a platform at Clapham Junction station during morning rush hour in London, Britain, September 8, 2021. REUTERS/Henry Nicholls

Vietnam police officers inspect authorised travel documents of commuters at a check point during the first day of the extended lockdown in Hanoi, Vietnam, September 6, 2021. REUTERS/Stringer

Vietnam police officers inspect commuters at a check point during the first day of the extended lockdown in Hanoi, Vietnam, September 6, 2021. REUTERS/Stringer

Vietnam police officers inspect authorised travel documents of commuters at a check point during the first day of the extended lockdown in Hanoi, Vietnam, September 6, 2021. REUTERS/Stringer

Vietnam police officers inspect authorised travel documents of commuters at a check point during the first day of the extended lockdown in Hanoi, Vietnam, September 6, 2021. REUTERS/Stringer

Vietnam police officers inspect authorization travel documents of commuters at a check point during the first day of the extended lockdown in Hanoi, Vietnam, September 6, 2021. REUTERS/Stringer

An MTA (Metropolitan Transportation Authority) Customer Service Usher assists commuters in Grand Central Terminal after multiple train lines were cancelled due to Tropical Storm Ida in Manhattan, New York City, U.S., September 3, 2021. REUTERS/Andrew Kelly

Displays warn commuters of delays caused by heavy rainfall and flooding during the morning rush in the NYC subway after the remnants of Tropical Storm Ida struck the northern mid-Atlantic, in New York City, U.S., September 2, 2021. REUTERS/Caitlin Ochs

A person waits as all trains are suspended while commuter rail tracks are underwater after the remnants of Hurricane Ida brought drenching rain, flash floods and tornadoes to parts of the northeast, in Boston, Massachusetts, U.S., September 2, 2021. REUTERS/Brian Snyder

A commuter checks her phone with signs warning of delays caused by heavy rainfall and flooding in the New York City subway after the remnants of Tropical Storm Ida brought drenching rain and the threat of flash floods to parts of the northern mid-Atlantic, in New York City, U.S., September 2, 2021. REUTERS/Caitlin Ochs

Tape warns commuters not to enter a closed subway station at 28th street, which was heavily flooded when the remnants of Tropical Storm Ida brought drenching rain and the threat of flash floods to parts of the northern mid-Atlantic, in New York City, U.S., September 2, 2021. REUTERS/Caitlin Ochs

Commuter rail tracks are underwater after the remnants of Hurricane Ida brought drenching rain, flash floods and tornadoes to parts of the northeast, in Boston, Massachusetts, U.S., September 2, 2021. REUTERS/Brian Snyder

Commuters deal with delays caused by heavy rainfall and flooding in the New York City subway during the morning rush after the remnants of Tropical Storm Ida brought drenching rain and the threat of flash floods to parts of the northern mid-Atlantic, in New York City, U.S., September 2, 2021. REUTERS/Caitlin Ochs

Commuters deal with delays caused by heavy rainfall and flooding in the New York City subway during the morning rush after the remnants of Tropical Storm Ida brought drenching rain and the threat of flash floods to parts of the northern mid-Atlantic, in New York City, U.S., September 2, 2021. REUTERS/Caitlin Ochs

A commuter waits for a train as the service is delayed after heavy rainfall in New York City, New York, U.S., September 2, 2021. REUTERS/Carlos Barria

Commuters wait in a queue to have their temperature checked amidst the spread of the coronavirus disease (COVID-19) at a railway station in Mumbai, India, August 27, 2021. REUTERS/Francis Mascarenhas

Signs on the highway warn commuters not to travel on Sunday as Hurricane Henri approaches in Long Island, New York, U.S., August 21, 2021. REUTERS/Caitlin Ochs

Commuters wearing protective face masks wait to board a suburban train after authorities resumed train services for vaccinated passengers amid the coronavirus disease (COVID-19) pandemic, in Mumbai, India, August 17, 2021. REUTERS/Francis Mascarenhas

Commuters wearing protective face masks wait to board a suburban train after authorities resumed train services for vaccinated passengers amid the coronavirus disease (COVID-19) pandemic, in Mumbai, India, August 17, 2021. REUTERS/Francis Mascarenhas

Commuters wearing protective face masks ride in a suburban train after authorities resumed the train services for vaccinated passengers amid the coronavirus disease (COVID-19) pandemic in Mumbai, India, August 16, 2021. REUTERS/Francis Mascarenhas

Commuters using umbrellas make their way along an avenue next to Shinjuku station during a rainy day in Tokyo, Japan, August 14, 2021. Picture taken August 14, 2021. REUTERS/Ivan Alvarado

View of the wreckage at the scene of a deadly crash between an express train and a local commuter service, in the village of Milavce, near the town of Domazlice, Czech Republic, August 4, 2021. REUTERS/David W Cerny TPX IMAGES OF THE DAY

Commuters wearing face masks arrive at Shinagawa Station at the start of the working day amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, August 2, 2021.REUTERS/Kevin Coombs