A health worker sprays disinfectant to prevent an outbreak of the coronavirus disease (COVID-19) at the Jomo Kenyatta International Airport in Nairobi, Kenya, March 24, 2020.

Employees from a disinfection service company sanitize a subway car depot amid coronavirus fears in Seoul, South Korea, March 11, 2020.

A volunteer disinfects the Paso del Norte International Border Bridge, where the flow of people has decreased after the United States closed the border to non-essential visits as the spread of coronavirus disease (COVID-19) continues, in Ciudad Juarez, Mexico March 30, 2020.

A member of the armed forces wearing a protective suit sprays disinfectant in the Metro's Central station, amid coronavirus disease (COVID-19) outbreak, in Brasilia, Brazil, March 29, 2020.

A municipal worker disinfects parked rickshaws in an alley during a 21-day nationwide lockdown to limit the spreading of the coronavirus disease (COVID-19), in Kolkata, India, March 30, 2020.

Health workers wearing protective suits spray disinfectant as a preventive measure against coronavirus at a makeshift rapid testing center for coronavirus disease (COVID-19), in Hanoi, Vietnam March 31, 2020.

A worker in a protective suit sprays disinfectant at Grand Bazaar, known as the Covered Bazaar, to prevent the spread of coronavirus disease (COVID-19), in Istanbul, Turkey, March 25, 2020.

A volunteer in protective suits controls a drone to spray disinfectants at Zhengwan village, as the country is hit by an outbreak of the new coronavirus, in Handan, Hebei province, China January 31, 2020. Picture taken January 31, 2020. China Daily via REUTERS

Volunteer receive disinfectants to spray on streets amid concerns about coronavirus disease (COVID-19) in Kabul, Afghanistan March 29, 2020.

A member of emergency medical staff is disinfected after transferring a patient with coronavirus disease (COVID-19), in Tehran, Iran March 30, 2020. WANA (West Asia News Agency)/Ali Khara via REUTERS

A member of local hygiene services wears a protective suit and a face mask, as he disinfects the street and market to stop the spread of coronavirus disease (COVID-19) in Dakar, Senegal March 22, 2020.

Boarding school students react as a worker sprays disinfectant on them before they travel back home by bus, amid the spread of coronavirus diseases (COVID-19) in Jombang, near Surabaya, East Java province, Indonesia, March 28, 2020 in this photo taken by Antara Foto. Antara Foto/Syaiful Arif/ via REUTERS

A worker in protective suit disinfects a room in a nursing home, during a nationwide lockdown to contain the spread of the coronavirus disease (COVID-19), in Ioannina, Greece, March 30, 2020.

Members of a local hygiene service wear protective suits and face masks as they disinfect the streets to stop the spread of coronavirus disease (COVID-19) in Abidjan, Ivory Coast, March 30, 2020.

Volunteers from Indonesia's Red Cross prepare to spray disinfectant at a school closed amid the spread of coronavirus (COVID-19) in Jakarta, Indonesia, March 16, 2020.

Volunteers prepare themselves to spray disinfectants on streets and shops amid concerns about coronavirus disease (COVID-19) in Kabul, Afghanistan March 30, 2020.

A worker disinfects playground equipment inside a kindergarten as students' returning has been delayed due to the novel coronavirus outbreak, in Ganzhou, Jiangxi province, China March 2, 2020. Picture taken March 2, 2020. China Daily via REUTERS

Municipal workers disinfect public areas as a part of measures against the spreading of the coronavirus disease (COVID-19) in Escobedo, on the outskirts of Monterrey, Mexico March 28, 2020.

A firefighter gestures to fellow firefighters to stop spraying disinfectant in order to refill their tanks, as the disinfectant is integral in the prevention of the spread of the coronavirus disease (COVID-19), on the main road in Jakarta, Indonesia, March 31, 2020.

Members of the armed forces disinfect the entrance of a hospital during the coronavirus disease (COVID-19) outbreak in Brasilia, Brazil, March 31, 2020.

An airforce member is seen with a full cover mask as he sprays disinfectant inside a main railway station, as the number of people tested positive for coronavirus disease (COVID-19) in the country increased, in Colombo, Sri Lanka March 18, 2020.

Municipal worker disinfects streets at downtown Cascais, to stop the spread of coronavirus disease (COVID-19) in Cascais, Portugal March 28, 2020.

A worker inspects a disinfection chamber installed on a sidewalk as part of measures against the spreading of coronavirus disease (COVID-19), in Escobedo, on the outskirts of Monterrey, Mexico March 29, 2020.

A member of a local hygiene service wearing a protective suit and a face mask disinfects a market to stop the spread of coronavirus disease (COVID-19) in Port Bouet, a neighbourhood of Abidjan, Ivory Coast, March 30, 2020.

Municipality worker sprays disinfectant on a relative of a coronavirus disease (COVID-19) victim during a funeral in Jakarta, Indonesia, March 31, 2020.

Members of the medical team prepare to spray disinfectant as a precautionary move amid concerns over the coronavirus disease (COVID-19) outbreak at the Great Pyramids, Giza, on the outskirts of Cairo, Egypt, March 25, 2020.

A municipal worker wearing a protective suit sprays disinfectant solution in a grave before the burial of a woman who died due to coronavirus disease (COVID-19), in Ahmedabad, India, March 28, 2020.

Image used for illustrative purpose. A municipal worker sprays with disinfectant, an ambulance carrying the coffin of a coronavirus disease (COVID-19) victim, in Jakarta, Indonesia, March 31, 2020.

Image used for illustrative purpose. A man holding a loudspeaker sits on a motorcycle as it travels past a sanitizing vehicle disinfecting the public space near residential buildings, following an outbreak of the novel coronavirus in the country, in Panyu district of Guangzhou, Guangdong province, China February 11, 2020. Picture taken February 11, 2020. China Daily via REUTERS

A member of a local hygiene service wearing a protective suit and a face mask disinfects a market to stop the spread of coronavirus disease (COVID-19) in Port Bouet, a neighbourhood of Abidjan, Ivory Coast, March 30, 2020.

A worker in a protective suit disinfects the Fatih Mosque in Istanbul, Turkey March 14, 2020.

Jaime Casady uses an electrostatic sprayer to disinfect the Uncle Ike’s pot shop, during the coronavirus disease (COVID-19) outbreak, in Seattle, Washington, U.S. March 26, 2020. Image used for illustrative purpose.