The diagnosis of an Ebola case in New York also put pressure on stocks. The New York Times reported early on Friday that a doctor in New York City, identified as Craig Spencer, has tested positive for the Ebola virus after returning from treating patients in West Africa.
Speaking at a press conference, New York Mayor Bill de Blasio sought to calm the public, saying officials believed "very few" people had contact with the doctor since his return. He reiterated that Ebola is not an air-borne virus.
Read MoreDoctor tests positive for Ebola in NYC
U.S. stocks edged higher on Friday, adding to weekly gains, amid disappointing earnings from Amazon despite worries about the potential spread of the virus.
Amazon dropped sharply in early New York trading after the online retailer offered a weak sales outlook for the important holiday quarter and third-quarter results came in below estimates.
Asian equities were mixed over concerns over Ebola and China, where official data showed new home prices falling 1.3 percent year on year in September, the first annual drop in nearly two years.
Tesco falls further
On the FTSE 100, publishing firm Pearson performed badly, closing down 2.6 percent after the company posted flat nine-month revenue. The company also said its CFO, Robin Freestone, would step down at the end of 2015.
Supermarket Tesco was also lower, closed down around 1.3 percent on Friday. Vodafone, however, was trading higher, with shares up 1.9 percent.
Ericsson posted third-quarter sales above expectations on Friday. Chief executive Hans Vestberg told CNBC that the company had seen gradual improvements in profit and growth. "We're doing a pretty decent job to improve our core business," he said.