AFP, NEW YORKEuropean stocks rallied on Friday while Wall Street equities tumbled as markets weighed the potential impact of a spreading viral illness in China. Chinese authorities expanded a massive quarantine effort in response to coronavirus, while the US confirmed its second case of the SARS-like ailment. US stocks had also opened higher but fell steadily as the session progressed. Tourism-oriented stocks were under pressure amid fears of the virus. United Airlines Holdings Inc sank 3.5 percent, Marriott International Inc lost 2.7 percent and Wynn Resorts Ltd fell 3.1 percent.