A local media reporter wearing a face mask following the coronavirus disease (COVID-19) outbreak explains for the camera the technology involved in broadcasting the news conference by Guo Weimin, spokesman for the National Committee of the Chinese People's Political Consultative Conference (CPPCC), in front of a 5G sign at a media center in Beijing, China May 20, 2020. REUTERS/Thomas Peter/Pool

A man is sprayed with hypochlorous acid water as a measure to prevent an infection with the coronavirus disease (COVID-19) while a live footage is shown on a screen explaining how to use the machine by a pub staff, at the entrance of Kichiri Shinjuku, a Japanese style pub known as an 'izakaya', in Tokyo, Japan May 19, 2020. REUTERS/Issei Kato

Wojciech Glac, neurobiologist at the University of Gdansk, explains how to play a board game he invented called "Infection" on the novel coronavirus and the human immune system, during an interview with Reuters as the spread of the coronavirus disease (COVID-19) continues in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

A sign explains that supplies have been exhausted as people queue for handouts of excess potatoes, that would otherwise go to waste due to coronavirus-related supply chain blockages, in an event organized by the Washington Potato Commission in Auburn, Washington, U.S. May 7, 2020. REUTERS/David Ryder

A sign explaining security measures to schoolchildren is displayed on a wall during the visit of French President Emmanuel Macron and French Education Minister Jean-Michel Blanquer at the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as the country readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

A staff member explains the testing procedure at a coronavirus test site in Poole, following the outbreak of the coronavirus disease (COVID-19), Poole, Britain, May 2, 2020. REUTERS/John Sibley

A staff member explains the testing procedure at a coronavirus test site in Poole, following the outbreak of the coronavirus disease (COVID-19), Poole, Britain, May 2, 2020. REUTERS/John Sibley

Signs explaining pandemic precautions hand on a fence at the entrance to Interbay Village, a village of tiny houses managed by the Low Income Housing Institute, in Seattle, Washington, U.S. April 29, 2020. REUTERS/David Ryder

Children confined to their homes under lockdown are drawing what they miss most - friends at school, grandparents, football and green open spaces. Regardless of where they are, the themes are often the same. From Tokyo to Buenos Aires, and from New York to Kathmandu, youngsters have taken to their balconies or front lawns to display and explain the drawings they have made to Reuters photographers. REUTERS/ SEARCH "CORONAVIRUS DRAWING" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: HEALTH-CORONAVIRUS/CHILDREN-DRAWING

An in-depth graphic explainer of ventilators, what they are and why they are critical to treat the worst symptoms of COVID-19

An in-depth graphic explainer of ventilators, what they are and why they are critical to treat the worst symptoms of COVID-19

An in-depth graphic explainer of ventilators, what they are and why they are critical to treat the worst symptoms of COVID-19

An in-depth graphic explainer of ventilators, what they are and why they are critical to treat the worst symptoms of COVID-19

Centers for Disease Control (CDC) Director Robert Redfield prepares to explain illness surveillance programs in the United States during the daily coronavirus task force briefing at the White House in Washington, U.S., April 17, 2020. REUTERS/Leah Millis

Centers for Disease Control (CDC) Director Robert Redfield explains illness surveillance programs in the United States in front of a chart showing statistics of patients seeking treatment for influenza-like illnesses during the daily coronavirus task force briefing at the White House in Washington, U.S., April 17, 2020. REUTERS/Leah Millis

U.S. President Donald Trump looks on as Dr Anthony Fauci takes to the podium to help explain the administration's guidelines for "Opening Up America Again" during the daily coronavirus task force briefing at the White House in Washington, U.S., April 16, 2020. REUTERS/Leah Millis

U.S. President Donald Trump stands in front of a chart projected on a video display as he participates in the daily coronavirus task force briefing to explain the administration's guidelines for "Opening Up America Again" at the White House in Washington, U.S., April 16, 2020. REUTERS/Leah Millis

U.S. President Donald Trump turns over the podium to Vice President Mike Pence to explain the administration's guidelines for "Opening Up America Again" during the daily coronavirus task force briefing at the White House in Washington, U.S., April 16, 2020. REUTERS/Leah Millis

U.S. President Donald Trump turns over the podium to Vice President Mike Pence to explain the administration's guidelines for "Opening Up America Again" during the daily coronavirus task force briefing at the White House in Washington, U.S., April 16, 2020. REUTERS/Leah Millis

Signs are hung on the door of a small grocery store explaining the new store rules and social distancing as the outbreak of the coronavirus disease (COVID-19) continues in New York, U.S., April 8, 2020. Picture taken April 8, 2020. REUTERS/Lucas Jackson

Marco Donoso del Bufalo, 20, a young man on the autism spectrum, and his sister Irene, 22, explain Spanish police officers that they are allowed to go out onto the street due to Marco's needs during the lockdown amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, April 9, 2020. Picture taken April 9, 2020. REUTERS/Susana Vera

Mark Kiesling, a senior anchor at local ABC affiliate television station WSIL, explains the reasoning behind barring the public from attending the Bald Knob Cross of Peace’s annual sunrise Easter service amid the coronavirus disease (COVID-19) outbreak in Alto Pass, Illinois, U.S. April 12, 2020. REUTERS/Brian Munoz

A catholic statue of Saint Judas is seen while Marco Antonio Palacios explains the preparation of tamales, a traditional Mexican dish, to sell on the street as the spread of the coronavirus disease (COVID-19) continues in Mexico City, Mexico April 6, 2020. Picture taken April 6, 2020. REUTERS/Carlos Jasso

A sign outside the kitchen tent explains reduced occupancy for social distancing purposes at Tent City 4, a homeless encampment, during the coronavirus disease (COVID-19) outbreak, in Sammamish, Washington, U.S. April 4, 2020. REUTERS/David Ryder

A health worker explains children how tu use a hand sanitiser while they wait to be checked by the medical team of NGO Intersos in a squatted building as the spread of coronavirus disease (COVID-19) continues, in Rome, Italy, April 3, 2020. REUTERS/Yara Nardi

A health worker explains to a father and his son how to use a hand sanitiser while they wait to be checked by the medical team of NGO Intersos in a squatted building as the spread of coronavirus disease (COVID-19) continues, in Rome, Italy, April 3, 2020. REUTERS/Yara Nardi

A sign explaining the closure of a construction site of a residential building is pictured, amid the coronavirus disease (COVID-19) outbreak in Paris, France, April 2, 2020. REUTERS/Benoit Tessier

A sign explaining the closure of a construction site of a residential building is pictured, amid the coronavirus disease (COVID-19) outbreak in Paris, France, April 2, 2020. REUTERS/Benoit Tessier

A sign explaining the closure of a construction site of a residential building is pictured, amid the coronavirus disease (COVID-19) outbreak in Paris, France, April 2, 2020. REUTERS/Benoit Tessier

A sign explaining the closure of a construction site of a residential building is pictured, amid the coronavirus disease (COVID-19) outbreak in Paris, France, April 2, 2020. REUTERS/Benoit Tessier

Self-employed physiotherapist Roman Pallesits explains a gymnastic exercise to kickboxer Nicole who sits inside especially built plexiglass box as the spread of the coronavirus disease (COVID-19) continues in Vienna, Austria, March 31, 2020. REUTERS/Lisi Niesner

Self-employed physiotherapist Roman Pallesits explains an exercise to jiu-jitsu fighter Pawel who sits inside especially built plexiglass box as the spread of the coronavirus disease (COVID-19) continues in Vienna, Austria, March 31, 2020. REUTERS/Lisi Niesner

Humanoid robot Prepper is standing at the checkout counter of the Edeka grocery store to explain protective measures and to promote solidarity with each other, as the spread of the coronavirus disease (COVID-19) continues, in Lindlar, Germany, March 31, 2020, REUTERS/Wolfgang Rattay

Humanoid robot Prepper is standing at the checkout counter of the Edeka grocery store to explain protective measures and to promote solidarity with each other, as the spread of the coronavirus disease (COVID-19) continues, in Lindlar, Germany, March 31, 2020, REUTERS/Wolfgang Rattay

Humanoid robot Prepper is standing at the checkout counter of the Edeka grocery store to explain protective measures and to promote solidarity with each other, as the spread of the coronavirus disease (COVID-19) continues, in Lindlar, Germany, March 31, 2020, REUTERS/Wolfgang Rattay

Humanoid robot Prepper is standing at the checkout counter of the Edeka grocery store to explain protective measures and to promote solidarity with each other, as the spread of the coronavirus disease (COVID-19) continues, in Lindlar, Germany, March 31, 2020, REUTERS/Wolfgang Rattay

Humanoid robot Prepper is standing at the checkout counter of the Edeka grocery store to explain protective measures and to promote solidarity with each other, as the spread of the coronavirus disease (COVID-19) continues, in Lindlar, Germany, March 31, 2020, REUTERS/Wolfgang Rattay

Nico Hofeditz explains a prototype of a respirator for use on partially recovered coronavirus patients, developed by scientists of Germany's Marburg university, as the spread of the coronavirus disease (COVID-19) continues, in Marburg, Germany, March 31, 2020. REUTERS/Ralph Orlowski

Peter Mross explains a prototype of a respirator for use on partially recovered coronavirus patients, developed by scientists of Germany's Marburg university, as the spread of the coronavirus disease (COVID-19) continues, in Marburg, Germany, March 31, 2020. REUTERS/Ralph Orlowski

Peter Mross explains a prototype of a respirator for use on partially recovered coronavirus patients, developed by scientists of Germany's Marburg university, as the spread of the coronavirus disease (COVID-19) continues, in Marburg, Germany, March 31, 2020. REUTERS/Ralph Orlowski

A health worker explains social distancing as people queue to collect social grants and shop during a 21 day nationwide lockdown aimed at limiting the spread of coronavirus disease (COVID-19) in Khayelitsha township near Cape Town, South Africa, March 31, 2020. REUTERS/Mike Hutchings

A health worker explains social distancing as people queue to collect social grants and shop during a 21 day nationwide lockdown aimed at limiting the spread of coronavirus disease (COVID-19) in Khayelitsha township near Cape Town, South Africa, March 31, 2020. Reuters/Mike Hutchings

Health workers explain social distancing as people queue to collect social grants and shop during a 21 day nationwide lockdown aimed at limiting the spread of coronavirus disease (COVID-19) in Khayelitsha township near Cape Town, South Africa, March 31, 2020. Reuters/Mike Hutchings

A sign explaining that a bookstore will remain closed, due to the outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York City, U.S., March 26, 2020. REUTERS/Stephen Yang

A sign explaining that a bookstore will remain closed, due to the outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York City, U.S., March 26, 2020. REUTERS/Stephen Yang

Haitian Boy and Girl Scouts explain to a person how to wash hands at a hand-washing station to prevent the spread of coronavirus disease (COVID-19) in Port-au-Prince, Haiti March 15, 2020. Picture taken March 15, 2020. REUTERS/Andres Martinez Casares

A sign explaining that play areas are closed is pictured at a playground, during the coronavirus disease (COVID-19) outbreak, at Green Lake Park in Seattle, Washington, U.S. March 22, 2020. REUTERS/David Ryder

A girl walks near a sign explaining that play areas are closed, during the coronavirus disease (COVID-19) outbreak, at Green Lake Park in Seattle, Washington, U.S. March 22, 2020. REUTERS/David Ryder

A sign at a playground explains that play areas are closed, during the coronavirus disease (COVID-19) outbreak, at Golden Gardens Park in Seattle, Washington, U.S. March 21, 2020. REUTERS/David Ryder

A person hangs from playground equipment near a sign explaining that play areas are closed, during the coronavirus disease (COVID-19) outbreak, at Golden Gardens Park in Seattle, Washington, U.S. March 21, 2020. REUTERS/David Ryder

A sign from The London Plane restaurant explains why employees are serving hundreds of free meals to healthcare workers on the front lines of the coronavirus disease (COVID-19) outbreak at Harborview Medical Center in Seattle, Washington, U.S. March 21, 2020. REUTERS/David Ryder

A lifeguard explains the closure of Bondi Beach to beachgoers after thousands of peopled flocked there in recent days, defying social distancing orders to prevent the spread of the coronavirus disease (COVID-19), in Sydney, Australia, March 21, 2020. REUTERS/Loren Elliott

Senate Majority Leader Mitch McConnell (R-KY) speaks to reporters while walking to his office, as Mayor Muriel Bowser declared a state of emergency due to the coronavirus disease (COVID-19), on Capitol Hill in Washington, U.S., March 18, 2020. REUTERS/Tom Brenner

Traders work as a television shows U.S. Treasury Secretary Steven Mnuchin speaking at the New York Stock Exchange as markets continue to react to the coronavirus disease (COVID-19) at the NYSE in New York, U.S., March 18, 2020. REUTERS/Lucas Jackson

Spanish Prime Minister Pedro Sanchez sits along with some deputies in an almost empty chamber before a session to explain coronavirus disease (COVID-19) outbreak, at Parliament in Madrid, Spain, March 18, 2020. Maridcal/Pool via REUTERS

Dutch Prime Minister Mark Rutte is displayed on a laptop screen as he gives a speech in which he discusses the current situation regarding the coronavirus disease (COVID-19) and explains the necessity of the measures taken, in Nijmegen, Netherlands March 17, 2020. REUTERS/Piroschka van de Wouw

Dutch Prime Minister Mark Rutte is displayed on a tv screen as he gives a speech in which he discusses the current situation regarding the coronavirus disease (COVID-19) and explains the necessity of the measures taken, in Nijmegen, Netherlands March 17, 2020. REUTERS/Piroschka van de Wouw

Dutch Prime Minister Mark Rutte is displayed on a laptop screen as he gives a speech in which he discusses the current situation regarding the coronavirus disease (COVID-19) and explains the necessity of the measures taken, in Nijmegen, Netherlands March 17, 2020. REUTERS/Piroschka van de Wouw

Dutch Prime Minister Mark Rutte is displayed on a mobile screen as he gives a speech in which he discusses the current situation regarding the coronavirus disease (COVID-19) and explains the necessity of the measures taken, in Nijmegen, Netherlands March 17, 2020. REUTERS/Piroschka van de Wouw

A paper placed on the entrance explains customers of Italian luxury shoemaker Tod's that their shop is closed due to coronavirus protection measures in Zurich, Switzerland March 17, 2020. REUTERS/Arnd Wiegmann