The logo of National Command and Operation Center .KARACHI: The Sindh government does not require the National Command and Operation Center’s permission to vaccinate its students of 9th to 12th classes against Covid-19, an official of the provincial government said on Tuesday.“We don’t need the NCOC’s authorization to vaccinate our students of 9th to 12th grades. We didn’t seek NCOC’s permission to vaccinate people without CNICs while we also vaccinated inmates of our prisons...