Saraswathy, Anitha Subhadra, Rameela Sanya, and Jayasree Anandabhavan Kumaran. “Incubation Period of COVID-19: Analysis of COVID-19 Cases Admitted in a Tertiary Care Center, Northern District of Kerala, India”. International Journal Of Community Medicine And Public Health 8, no. 5 (April 27, 2021): 2451–2454. Accessed October 26, 2025. https://www.ijcmph.com/index.php/ijcmph/article/view/7947.