Effectiveness of the BBV-152 and AZD1222 vaccines among adult patients hospitalized in tertiary hospitals in Odisha with symptomatic respiratory diseases: A test-negative case–cont... by Debdutta Bhattacharya, Srikanta Kanungo, Subrata Kumar Palo, Jaya Singh Kshatri, Matrujyoti Pattnaik, Shishirendu Ghosal, Pranab Mohapatra, C. Mohan Rao, Avinav Sahoo, Rudra Prasanna Mishra, Sanghamitra Mishra, Amiya Ranjan Mohanta, Chinki Doley, Sanghamitra Pati

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