<span style="color: #222222;">Uttar Pradesh yesterday saw highest spike in the number of corona positive cases in a day. A total of record 323 new cases were found in last 24 hours in state. <br />''<br />''Meanwhile a bid to ensure safety of COVID-19 frontline workers, Chief Minister Yogi Adityanath yesterday launched Chikitsa setu app, for healthcare workers, sanitation workers and police personnel fighting against the pandemic.</span><br />