Oil sell-off, virus fears push FTSE 100 to second straight weekly loss

(Reuters) - London's FTSE 100 racked up losses for the second consecutive week on Friday, weighed down by falling oil majors BP and Shell while retail sales data showed the scale of the economic fallout from the coronavirus crisis.A report that Gilead Sciences Inc's closely-watched experimental antiviral drug failed to help patients with severe COVID-19 in a clinical trial clouded sentiment globally.The blue-chip FTSE 100 index ended 1.3% lower, logging a 0.6% decline for the week marred by a..