Germany, Spain, China and Italy are also among the countries with the highest number of reported recoveries to date.
"Poisoning our environment means poisoning our own body," said researcher Yaron Ogen.
While Italy and Spain have shown signs of the outbreak slowing down in recent days, both countries remain in lockdown.
Spain is among the countries worst affected by the ongoing coronavirus pandemic.
Some European countries badly affected by the COVID-19 outbreak have made moves to lift restrictions.
More than 70,800 patients in Spain, nearly 40 percent of the country's confirmed cases, have recovered from infection.
The country, which has been in lockdown for several weeks, is planning to ease some restrictions under new guidelines issued Saturday.
The guidance document prescribes a two-meter distance between commuters and recommends that users of public transportation wear hygienic masks.
The research, dubbed the Clinical Trial for the Prevention of Coronavirus Infection in Health Workers (EPICOS) will study 4,000 health workers at 62 hospitals in 13 regions in Spain.
The number of confirmed infections also saw a significant drop from a 20 percent increase last week, while the daily death toll also fell on Monday.
With cases continuing to rise, Spanish Prime Minister Pedro Sanchez asked Parliament to approve a request to extend the state of emergency for 15 days.
The man's caregiver has told him that people are clapping from their windows due to his musical performance.
People were surprised by the abundance of cleavage soldiers were showing.
The woman was detained when officers stopped her as she walked down the street in Tortosa, a city in Catalonia.
The Spanish Civil Guards and the suspect's lawyer were placed in quarantine following incident near Zargoza.
Spain has declared a state of emergency with people not allowed to leave their homes except in a small number of circumstances.
"We are facing [too] serious a situation to have you walking on the street trying to fool police. You don't fool us and also you'll be fined," a police union wrote.
The married woman had recently returned to Argentina after a trip to Spain.
Spain's Prime Minister Pedro Sánchez recently imposed a 15-day state of alarm that restricted free movement in an attempt to limit the spread of COVID-19, which has spread rapidly in the country.
Also, French Prime Minister Edouard Philippe has ordered all non-essential public locations to close in his country due to the crisis.
On Wednesday, the Italian soccer club, A.S. Roma announced it was not traveling to Spain to play its game against Sevilla because their plane was not authorized to land in the country.
Authorities started investigating after the marble slabs started to arrive in the port of Valencia. Five people have been arrested.
South Korea is now reporting the second highest number of confirmed cases outside China, while the death toll in Italy has nearly doubled within a day.
Local reports say that the woman had been in Shanghai, and started coughing at a bar in the northern city of Valladolid.
Researchers say that the engravings in the cave are the oldest of their kind ever discovered in the Spanish autonomous region of Catalonia.
The powerful storm has caused at least 10 deaths in Spain.
Previously scientists believed the different burials found at the site represented social differences.
On June 30, 1520, the Aztecs drove Hernán Cortés and his invading army out of their capital Tenochtitlan—an event that came to be known as "La Noche Triste" or "Sad Night."