French Minister of Higher Education, Research and Innovation, Frederique Vidal, wearing a protective face mask, visits a restaurant open in solidarity with students in the fight against the precariousness and social isolation of students amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 5, 2021. REUTERS/Eric Gaillard

French Minister of Higher Education, Research and Innovation, Frederique Vidal, wearing a protective face mask, visits a restaurant open in solidarity with students in the fight against the precariousness and social isolation of students amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 5, 2021. REUTERS/Eric Gaillard

French Minister of Higher Education, Research and Innovation, Frederique Vidal, wearing a protective face mask, and Christian Estrosi, Mayor of Nice, visit a restaurant open in solidarity with students in the fight against the precariousness and social isolation of students amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 5, 2021. REUTERS/Eric Gaillard

French Minister of Higher Education, Research and Innovation, Frederique Vidal, wearing a protective face mask, and Christian Estrosi, Mayor of Nice, visit a restaurant open in solidarity with students in the fight against the precariousness and social isolation of students amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 5, 2021. REUTERS/Eric Gaillard

Yoichi Sugimoto, Executive Chief Engineer at the Advanced Technology Research Institute of the Honda Research Institute, attends the unveiling of the company's all-new Legend sedan, equipped with level 3 autonomous driving technology, in Tokyo, Japan March 4, 2021. REUTERS/Issei Kato

Yoichi Sugimoto, Executive Chief Engineer at the Advanced Technology Research Institute of the Honda Research Institute, attends the unveiling of the company's all-new Legend sedan, equipped with level 3 autonomous driving technology, in Tokyo, Japan March 4, 2021. REUTERS/Issei Kato

Yoichi Sugimoto, Executive Chief Engineer at the Advanced Technology Research Institute of the Honda Research Institute, and other executives pose next to the company's all-new Legend sedan, equipped with level 3 autonomous driving technology, during an unveiling in Tokyo, Japan March 4, 2021. REUTERS/Issei Kato

German Chancellor Angela Merkel receives the 2021 report by the Council of Experts on Research and Innovation (EFI), in Berlin, Germany February 24, 2021. Sean Gallup/Pool via REUTERS

German Chancellor Angela Merkel receives the 2021 report by the Council of Experts on Research and Innovation (EFI), in Berlin, Germany February 24, 2021. Sean Gallup/Pool via REUTERS

German Chancellor Angela Merkel receives the 2021 report by the Council of Experts on Research and Innovation (EFI), in Berlin, Germany February 24, 2021. Sean Gallup/Pool via REUTERS

German Chancellor Angela Merkel receives the 2021 report by the Council of Experts on Research and Innovation (EFI), in Berlin, Germany February 24, 2021. Sean Gallup/Pool via REUTERS

German Chancellor Angela Merkel receives the 2021 report by the Council of Experts on Research and Innovation (EFI), in Berlin, Germany February 24, 2021. Sean Gallup/Pool via REUTERS

New "filtering and decontaminating" masks designed by French start-up BioSerenity are displayed during an interview with Reuters at the INSERM research center of Lille University Medical School,, amid the spread of the coronavirus disease (COVID-19) in France, February 22, 2021. Picture taken, February 22, 2021. REUTERS/Pascal Rossignol

New "filtering and decontaminating" mask designed by French start-up BioSerenity are tested at the INSERM research center of Lille University Medical School, amid the spread of the coronavirus disease (COVID-19) in France, February 22, 2021. Picture taken, February 22, 2021. REUTERS/Pascal Rossignol

New "filtering and decontaminating" mask designed by French start-up BioSerenity are tested at the INSERM research center of Lille University Medical School, amid the spread of the coronavirus disease (COVID-19) in France, February 22, 2021. Picture taken, February 22, 2021. REUTERS/Pascal Rossignol

Nicolas Blanchemain, Professor at Lille university and researcher specialized in biomaterials, wears a new "filtering and decontaminating" mask designed by French start-up BioSerenity during an interview with Reuters at the INSERM research center of Lille University Medical School, amid the spread of the coronavirus disease (COVID-19) in France, February 22, 2021. Picture taken, February 22, 2021. REUTERS/Pascal Rossignol

Turkish Navy research vessel TCG Cesme sails in the Bosphorus in Istanbul, Turkey October 16, 2019. Picture taken October 16, 2019. REUTERS/Yoruk Isik

Medical technicians take a break at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A forensic pathologist takes a swab from a body for a coronavirus disease (COVID-19) test at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A medical technician works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A medical technician works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A medical technician works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

Milenko Bogdanovic, a forensic pathologist looks at a body at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

Milenko Bogdanovic, a forensic pathologist works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A forensic toxicology chemist works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A forensic toxicology chemist works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A forensic toxicology chemist works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

Milenko Bogdanovic, a forensic pathologist poses for a picture at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 18, 2021. Picture taken February 18, 2021. REUTERS/Marko Djurica

Milenko Bogdanovic, a forensic pathologist works at the Institute for Forensic Medicine of Belgrade's Medical Faculty, in Belgrade, Serbia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Marko Djurica

A scientist displays a smartphone showing curve indicating a COVID-19 test positive result during an interview with Reuters about a project called CorDial-1 for rapid COVID tests via smartphones, at a CNRS research laboratory in Villeneuve-d'Ascq, France, February 11, 2021. Picture taken February 11, 2021. REUTERS/Pascal Rossignol

Researcher Sabine Szunerits, Professor in Chemistry at the University Lille 1, surrounded Rabah Boukherroub, Research Director Group Leader at the Institute of Electronics, Microelectronics and Nanotechnology at the University of Lille, and Professor David Devos, displays a smartphone showing curve indicating a COVID-19 test positive result during an interview with Reuters about a project called CorDial-1 for rapid COVID tests via smartphones, at the CNRS in Villeneuve-d'Ascq, France, February 11, 2021. Picture taken February 11, 2021. REUTERS/Pascal Rossignol

Researcher Sabine Szunerits, Professor in Chemistry at the University Lille 1, displays a smartphone showing curve indicating a COVID-19 test positive result during an interview with Reuters about a project called CorDial-1 for rapid COVID tests via smartphones, at the CNRS in Villeneuve-d'Ascq, France, February 11, 2021. Picture taken February 11, 2021. REUTERS/Pascal Rossignol

French Higher Education, Research and Innovation Minister Frederique Vidal, and Chairman and CEO of the CNRS Antoine Petit (R) attend a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

A researcher looks on a display showing a status overview of Swiss seismic stations at the Swiss Seismological Service at ETH Zurich in Switzerland January 14, 2021. Picture taken January 14, 2021. REUTERS/Arnd Wiegmann

Senior researcher Federica Lanza looks on Swiss seismic stations shown on several displays at the Swiss Seismological Service (SED) at ETH Zurich in Switzerland January 14, 2021. Picture taken January 14, 2021. REUTERS/Arnd Wiegmann

A researcher checks a Streckeisen broadband seismometer at the seismic observatory Degenried of the Swiss Seismological Service (SED) at ETH Zurich in Switzerland January 14, 2021. Picture taken January 14, 2021. REUTERS/Arnd Wiegmann

Researchers open the earth shaft of a seismic station of the Swiss Seismological Service (SED) at ETH Zurich in Switzerland January 14, 2021. Picture taken January 14, 2021. REUTERS/Arnd Wiegmann

Inmaculada Hernandez, researcher of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works at laboratory in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Mar Ruiz Galea researcher of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works at laboratory in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

A scientist researcher, wearing protective gear, works in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, writes on a box controlling the air quality in the lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, works to control the air quality in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, works in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, works to control the air quality in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, works to control the air quality in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, stands behind a door in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, works in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, shows a box controlling the air quality in the lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, shows a box controlling the air quality in the lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

A scientist researcher, wearing protective gear, stands behind a door in a lab at the Thermo Fisher plant, former Novasep, producing COVID-19 vaccines for AstraZeneca in Seneffe, Belgium, February 10, 2021. REUTERS/Yves Herman

Philippine Health Secretary Francisco Duque holds a flowchart for the COVID-19 vaccine simulation during a press briefing at the Research Institute for Tropical Medicine in Muntinlupa, Metro Manila, Philippines, February 9, 2021. REUTERS/Eloisa Lopez

A worker walks past a new extension of the National Research Council of Canada building under construction, in Montreal, Quebec, Canada February 4, 2021. REUTERS/Christinne Muschi

A new extension of the National Research Council of Canada building under construction is seen in Montreal, Quebec, Canada February 4, 2021. REUTERS/Christinne Muschi

Workers walk past a new extension of the National Research Council of Canada building under construction, in Montreal, Quebec, Canada February 4, 2021. REUTERS/Christinne Muschi

Workers clear snow from a new extension of the National Research Council of Canada building under construction, in Montreal, Quebec, Canada February 4, 2021. REUTERS/Christinne Muschi

Workers clear snow from a new extension of the National Research Council of Canada building under construction, in Montreal, Quebec, Canada February 4, 2021. REUTERS/Christinne Muschi

A worker monitors traffic around a new extension of the National Research Council of Canada building under construction, in Montreal, Quebec, Canada February 4, 2021. REUTERS/Christinne Muschi

Researchers at Hanover university's vet clinic present Joe, the 1-year-old Cocker Spaniel which is able to detect COVID-19 in humans' saliva samples, in Hanover, Germany, February 3, 2021. REUTERS/Hannibal Hanschke REFILE - CORRECTING YEAR.

Filou, the 3-year-old Belgian shepherd which is able to detect COVID-19 in humans' saliva samples is seen at Hanover university's vet clinic, in Hanover, Germany, February 3, 2021. REUTERS/Hannibal Hanschke REFILE - CORRECTING YEAR.

Researchers at Hanover university's vet clinic present Filou, the 3-year-old Belgian shepherd which is able to detect COVID-19 in humans' saliva samples, in Hanover, Germany, February 3, 2021. REUTERS/Hannibal Hanschke REFILE - CORRECTING YEAR.