After seen coughing and blowing his nose during Mass on Ash Wednesday and his weekly blessing on Sunday, Pope Francis underwent testing for the coronavirus, according to Newsweek. Tests came back negative, but the cold was enough to cause him to miss several events including a Lenten retreat.

»AJC's coronavirus coverage

“Unfortunately a cold prevents me from participating this year. I will be following the meditation from here,” he told crowds Sunday.

Matteo Bruni, a Vatican spokesperson, said last Thursday the pope had stayed in his room at Santa Marca, his home in the Vatican “due to a slight indisposition.”

The 83-year-old head of the Roman Catholic Church often comes into close contact with the public at numerous speaking engagements and public blessings.

»Click here to get the new AJC Mobile App

He expressed his sympathies for the victims of the coronavirus in an address on Ash Wednesday in St. Peter's Square.

"I wish, again, to express my closeness to those who are ill with coronavirus and to health care workers who are caring for them." — Pope Francis

The Philippines, Asia's only predominantly Catholic nation, observed a "no-contact" Ash Wednesday amid virus fears, according to The Jakarta Post. Priests elected to sprinkle ashes instead of dabbing them on churchgoers' foreheads.

The coronavirus infections in Italy rose 50% in 24 hours Sunday to 1,694 cases.

»MORE: Virus accelerates in Italy; US urges citizens to avoid north

How does coronavirus differ from the flu? Coronavirus, also known as 2019-nCoV, has infected 40,171 people and killed more than 900 in China. With flu season in full effect and the spread of 2019-nCoV, many have become worried about infection. But how do the two illnesses compare? Here are a few differentiating factors. Symptoms and SeverityFlu symptoms include fever, cough, sore throat and muscle aches. Coronavirus includes fever, cough and shortness of breath. Death Rate 0.05 percent of thos

Delta Airlines suspended flights to Milan and is delaying releasing summer flights to Venice to see how the virus spreads.

"At the end of the week we will understand if and how much the containment measures put in place have slowed the epidemic. We expect positive results, I am optimistic. We ask all citizens for collaboration. Their help is important for breaking the chain of infections." — Silvio Brusaferro, head of Italy's National Health Institute

»RELATED: Ga. students quarantined as colleges halt some study abroad classes