The second edition of the book has been thoroughly revised, rejuvenated in form of topics which are either highly important or recently updated from each domain of the subject. It has all the updatd information related to covid-19 right from the basics to recent advances. Few new annexures, such as Famous Acronyms, ICMR-NIN Nutritional data (2020) have been added in this edition which is going to be useful to MD and even MBBS professional exams

• The Unique feature of new edition is having an add-on in each chapter in form of topics from most demanding to recently updated with new case studies.

• The second edition of the book contains the latest public health data, updates on existing national health programs and laws while addition of newly launched national health programs and guidelines.

• Some difficult topics, such as Kappa Statistics, Kaplan–Meier, etc., have been added.

• Chapters of Spots and Viva-voce have been expanded (more than 200 images) to cover all possible questions related to Spotters and Viva.

• The most acclaimed chapter of “Differences of Important Public Health Terms” has been expanded with more important, difficult, and similar-looking concepts of the subject.

• For PG aspirants, chapters, namely “Golden Tables of Important communicable diseases”

• in tabular form has been revised with the addition of some emerging diseases, such as Hanta,

• Nipah, Ebola, etc., and number of images have been added