SAN FRANCISCO--(BUSINESS WIRE)--The World Health Organization declared a swine flu pandemic Thursday, raising its pandemic warning from phase 5 to 6, making swine flu the first global flu epidemic in 41 years. Now that H1N1 “Swine Flu” has been elevated to pandemic status, with reports of outbreaks in Asia, the Middle East and Europe, San Francisco, USA-based Cannabis Science Inc. (OTCBB: CBIS) CEO Steven Kubby urges public health officials around the world to “take medical cannabis seriously.”