Viruses have a fascinating evolution: they are inanimate complex organic matter that have perfected the art of surviving without actually living, hijacking a living organism to create millions of copies of itself. Today the world seems to have come to a screeching halt i covid19 n front of one such virus: a small packet of genetic material, one-tenth the width of our eyelash, COVID-19, which has been declared a global pandemic by WHO. The Spread of COVID-19   In the current era of globalisation, humans, animals, and food are moving around frequently and more easily than ever before. This intercontinental flow of goods, information, and people pose a great threat of spreading infections across the globe within a few days and it becomes difficult to contain it within specific geographical areas. One example is malaria: twenty years ago, only 20% of the world population was living in areas where malaria was endemic, and now the numbers have risen to 40%. While in the past, it took months or years for a pandemic to spread, it is now only a matter of a few days because of more interaction among people of different races and cultures. Just look at the present scenario: what started as few unusual cases of pneumonia in Wuhan, has now spread to 213 countries, killing more than 652,600 people. The COVID-19 probably originated in bats, then jumping onto an intermediate host which then ultimately infected humans. This is not the first time that a virus has jumped from animals to humans. SARS, MERS are other examples of infections previously unknown to humans which are speculated to have a zoonotic origin.   The solution? As medical science is constantly progressing, we have developed vaccines for a variety of deadly illnesses like smallpox, but because disease-causing organisms are evolving at a fast rate, it becomes difficult to provide immunity against many diseases. There is a huge surge in new diseases along with the re-emergence of old infectious diseases. According to the 2007 report of WHO, infectious diseases are emerging at an alarming rate. Cross-species transmission of unknown strains of viruses has led to a host of new infections unknown to us, like the first major epidemic of the 21st century: SARS. Coronaviruses were previously mostly known for causing the common cold, but SARS became the game-changer: and a deadly coronavirus with pandemic potential was discovered. This also opened gates to a variety of studies in