THE HAGUE: The European Union started the approval process for its third vaccine on Tuesday after WHO scientists warned that herd immunity from coronavirus was unlikely this year even with mass inoculation schemes.The 27-nation EU -- under fire for lengthy approval processes and slow national rollouts of drugs -- promised an "accelerated timeline" after confirming drug company AstraZeneca had applied for approval for the jab it developed with Oxford University.The EU’s medicines agency said...