OTTAWA (Reuters) - A Canadian decision on whether to approve Pfizer Inc’s COVID-19 vaccine for those aged 5 to 11 will not come before mid- to end-November, a senior official said on Friday. “I think we’re still at least a few weeks away from a final decision ... we’ve received some additional information just this past week that we’rem looking through,” Supriya Sharma, the federal health ministry’s chief medical adviser, told a briefing. Reporting by David Ljunggren