NOIDA (UP) : An estimated 47,600 phone calls have been made so far on the dedicated helpline for queries related to COVID-19 in Uttar Pradesh's Gautam Buddh Nagar, officials said on Friday.On an average, 400 calls are received daily on the helpline number – 1800 419 2211 – at the integrated control room which was launched on April 4, the officials said.Gautam Buddh Nagar has so far recorded 2,477 positive cases of COVID-19, the highest for any district in the state, and it has 929 active patients, according to official figures updated till Thursday.The district, adjoining Delhi, has also recorded 22 deaths due to the disease, with a mortality rate of 0.88% and a recovery rate of 61.60%, according to official statistics.“The integrated.