Dr. Jacob K. Jacob3, D. R. C. V. D. J. M. M. “PROPORTION OF PRIMARY AND SECONDARY DENGUE INFECTION AMONG SEROLOGICALLY POSITIVE DENGUE FEVER CASES ADMITTED IN A TERTIARY CARE CENTRE IN KERALA”. International Journal of Medical Science in Clinical Research and Review, vol. 5, no. 06, Nov. 2022, pp. Page: 1074-1082, http://ijmscrr.in/index.php/ijmscrr/article/view/399.