SAN LUIS OBISPO, Calif. (AP) – With more than 600 colleges and universities now requiring proof of COVID-19 inoculations, an online industry has sprung up offering fake vaccine cards. Dozens of students interviewed by The Associated Press said they were aware of fake COVID-19 vaccination cards, though none admitted to actually using one. On the dark web, sellers list COVID-19 vaccine cards, certificates and passports for sale, some costing about $473 in U.S. dollars.