Funding for this research was provided by:
indian council of medical research
Received: 4 August 2021
Accepted: 31 August 2021
First Online: 16 September 2021
: The study protocol, data extraction forms, and procedures were reviewed and approved by the Institutional Ethical Committee of ICMR-National Institute of Virology, Pune, and the ethical committee of Bai Jerbai Wadia Hospital for Children.
: All parents provided written informed consent to participate in the study.
: The informed consent included the authorization to publish information.
: The authors declare no competing interests.
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