Miss Ferreira, a 25-year-old music and business student from Portugal who was wearing a mask, said: "Some of our performers came from China, so we were worried about getting them here, but it hasn't been a problem."
People wear masks as they pose for a picture during Chinese Lunar New Year celebrations
REUTERS
Miss Jelinkova, 22, from Czech Republic, said she would wear a mask in central London anyway because of air pollution.
Phillip Rowell, a British scriptwriter who lived in Hong Kong and Singapore during the Sars virus outbreak in 2003, said he was not worried about another respiratory virus from the region.
Mr Rowell, 49, who was celebrating with his wife and son, said: "We lived through a few of those things in Asia, we had Sars when we were there and I always think it looks worse on the news.
"I'm sure it's serious, but the numbers (of those infected) are actually quite low at the moment, so I wasn't really worried about being around Chinese people or anything like that.
"We had breakfast in a Chinese dim sum place this morning, it was packed, people were waiting for tables, there was no sense of people staying away."
Performers taking part in a parade involving costumes, lion dances and floats, during Chinese New Year
PA
He added he has "faith in the Chinese government" because they "learned their lesson" after Sars, which killed 774 people in 17 countries.
Elaine Lui, a Newcastle University media student from south-east China, also said she was confident precautions in China would help to tackle the virus.
She said: "I have a friend in Wuhan but I'm not worried. The Chinese people, we will protect ourselves and also protect everyone else."
Suzanne Corbin, 64, from Whitstable, Kent, said she "definitely" thought about coronavirus before coming to the festival, but "decided the risk was really low".
She said: "I come every year because I love the tradition of the Chinese new year.
"I love the dragons, the dancing, the noise, the celebration of spring. There's a lot of people out enjoying it."