Cuatro días después de que Wuhan informó sobre un nuevo grupo de infecciones por coronavirus por primera vez en un mes, la ciudad inició una campaña para hacer pruebas al resto de los 11 millones de residentes.

Las aplicaciones de seguimiento de la salud y localización han desempeñado un papel fundamental en la contención del coronavirus en China y ahora parece que van a tener un rol más amplio en la vida cotidiana.

People stand in line to receive vouchers at a food distribution center supported by the World Food Program in Sanaa, Yemen June 3, 2020. REUTERS/Khaled Abdullah

People stand in line to receive vouchers at a food distribution center supported by the World Food Program in Sanaa, Yemen June 3, 2020. REUTERS/Khaled Abdullah

Workers push wheel carts with foodstuff outside a food distribution center supported by the World Food Program in Sanaa, Yemen June 3, 2020. REUTERS/Khaled Abdullah

People stand in line to receive vouchers at a food distribution center supported by the World Food Program in Sanaa, Yemen June 3, 2020. REUTERS/Khaled Abdullah

Workers prepare foodstuff for beneficiaries at a food distribution center supported by the World Food Program in Sanaa, Yemen June 3, 2020. REUTERS/Khaled Abdullah

A vendor selling traditional daggers, or Jambiyas, waits for customers as he poses for the camera at his market stall amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

A man walks through a market amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

A man wearing a protective mask poses for a picture at a market amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

A sweets vendor waits for customers at his shop at a market amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

People sit at a market's cafe amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

A man wearing a protective mask buys corn from a street vendor at a market amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

A man wearing a protective mask walks at a market amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

A man wearing a protective mask walks at a market amid novel coronavirus spread concerns in the old quarter of Sanaa, Yemen June 2, 2020. REUTERS/Khaled Abdullah

Un panel de ocho indicadores ofrece pistas sobre cómo la pandemia ha reconfigurado la economía mundial

A visitor in costume of North Korean leader Kim Jong-un rubs his hands with alcohol which sprayed from a staff as he visits to Tokyo landmark "Tokyo Skytree", which reopened after a 3-month closure due to the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, June 1, 2020. REUTERS/Kim Kyung-Hoon

Visitors in costumes of North Korean leader Kim Jong-un and North Korean solider pose for a photo as they visit to an observation desk of Tokyo landmark "Tokyo Skytree", which reopened after a 3-month closure due to the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, June 1, 2020. REUTERS/Kim Kyung-Hoon

Visitors in costumes of North Korean leader Kim Jong-un and a North Korean soldier are escorted by a staff member wearing a face shield and a protective mask, during a visit to Tokyo landmark "Tokyo Skytree", which reopened after a 3-month closure due to the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, June 1, 2020. REUTERS/Kim Kyung-Hoon

Spanish Minister of Foreign Affairs, European Union and Cooperation, Arancha Gonzalez Laya is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, gestures during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, adjusts a face mask during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, adjusts a face mask during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, adjusts a face mask during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

Spanish Minister of Foreign Affairs, European Union and Cooperation, Arancha Gonzalez Laya is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, is seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

European High Representative of the Union for Foreign Affairs, Josep Borrell, and Spanish Minister of Foreign Affairs, European Union and Cooperation, Arancha Gonzalez Laya are seen during a video press conference at the end of International Donors' Conference in solidarity with Venezuelan refugees and migrants in the countries of the region, in the context of the coronavirus pandemic in Brussels, Belgium May 26, 2020. Olivier Hoslet/Pool via REUTERS

La ciudad estado de Singapur, que en su día fue considerada un modelo de lucha contra el coronavirus, se ha esforzado por contener la infección que ahora se centra en residencias de trabajadores extranjeros, obras de construcción y fábricas.

Howard X, an Australian-Chinese impersonating North Korean leader Kim Jong-un walks near riot police as officers clear the crowd in a mall to avoid the spread of the coronavirus disease (COVID-19) during an anti-government protest in Hong Kong, China April 28, 2020. REUTERS/Tyrone Siu

Howard X, an Australian-Chinese impersonating North Korean leader Kim Jong-un wearing face masks to avoid the spread of the coronavirus disease (COVID-19) is pictured during an anti-government protest in Hong Kong, China April 28, 2020. REUTERS/Tyrone Siu

Howard X, an Australian-Chinese impersonating North Korean leader Kim Jong-un walks near riot police as officers clear the crowd in a mall to avoid the spread of the coronavirus disease (COVID-19) during an anti-government protest in Hong Kong, China April 28, 2020. REUTERS/Tyrone Siu

Howard X, an Australian-Chinese impersonating North Korean leader Kim Jong-un wearing face masks to avoid the spread of the coronavirus disease (COVID-19) is seen during an anti-government protest in Hong Kong, China April 28, 2020. REUTERS/Tyrone Siu TPX IMAGES OF THE DAY

Howard X, an Australian-Chinese impersonating North Korean leader Kim Jong-un walks near riot police as officers clear the crowd in a mall to avoid the spread of the coronavirus disease (COVID-19) during an anti-government protest in Hong Kong, China April 28, 2020. REUTERS/Tyrone Siu

Diagram showing family tree of North Korean leader Kim Jong Un

South Korean people watch a TV broadcasting a news report on North Korean leader Kim Jong Un in Seoul, South Korea, April 21, 2020. REUTERS/Heo Ran

South Korean people watch a TV broadcasting a news report on North Korean leader Kim Jong Un in Seoul, South Korea, April 21, 2020. REUTERS/Heo Ran

Cómo ha mejorado la calidad del aire durante la crisis del coronavirus. El gráfico muestra como el nitrato PM2,5 y otros contaminantes disminuyen en los últimos 3 meses en todo el mundo

A sign reading "Peace" is seen over a bench, during the coronavirus disease (COVID-19) outbreak, near the UN-controlled buffer zone in Nicosia, Cyprus, April 15, 2020. REUTERS/Yiannis Kourtoglou

Nueva York es ahora el mayor campo de batalla del mundo contra el COVID-19, con cerca de un 5% de todos los casos

A specialist wearing protective gear takes part in the disinfection of a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

A specialist wearing protective gear takes part in the disinfection of a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

Specialists wearing protective gear take part in the disinfection of a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

A specialist wearing protective gear sprays disinfectant while sanitizing a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

A specialist wearing protective gear takes part in the disinfection of a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

A driver reacts as a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, is disinfected at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

A specialist wearing protective gear sprays disinfectant while sanitizing a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

A specialist wearing protective gear sprays disinfectant while sanitizing a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

Specialists wearing protective gear sanitize a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

Specialists wearing protective gear spray disinfectant while sanitizing a truck convoy of the International Committee of the Red Cross (ICRC) and the United Nations (UN), which carries medical equipment and pharmaceuticals to rebel-controlled Donetsk region amid the coronavirus (COVID-19) pandemic, at a check-point in the settlement of Olenivka in Donetsk region, Ukraine April 3, 2020. REUTERS/Alexander Ermochenko

Filippo Grandi, United Nations High Commissioner for Refugees (UNHCR), attends a news conference in Geneva, Switzerland, March 3, 2020. Picture taken March 3, 2020. REUTERS/Denis Balibouse

Antonio Vitorino, Director General of the International Organization for Migration (IOM), attends a news conference at the United Nations in Geneva, Switzerland, March 3, 2020. Picture taken March 3, 2020. REUTERS/Denis Balibouse