Being human's, we always want and expect each day to be happy, beautiful and nurturing. Looking at the past few days while Viral disease is spreading rapidly like a fire, death tolls reaching the sky and the life of common man is completely upside down.

Plague of Cyprian of 251–266 AD,  a second outbreak of what may have been the same disease as the Antonine Plague killed (it was said) 5,000 people a day in Rome. The Plague of Cyprian was a pandemic that afflicted the Roman Empire about from AD 249 to 262. The plague is thought to have caused widespread manpower shortages for food production and the Roman army, severely weakening the empire during the Crisis of the Third Century. Its modern name commemorates St. Cyprian, bishop of Carthage, an early Christian writer who witnessed and described the plague. The agent of the plague is highly speculative because of sparse sourcing, but suspects have included smallpox, pandemic influenza and viral hemorrhagic fever (filoviruses) like the Ebola virus.

Black death outbreak was during 1331 to 1353.The total number of deaths worldwide is estimated at 75 to 200 million. Eight hundred years after the last outbreak, the plague returned to Europe. Starting in Asia, the disease reached the Mediterranean and western Europe in 1348 (possibly from Italian merchants fleeing fighting in Crimea), and killed an estimated 20 to 30 million Europeans in six years; a third of the total population, and up to a half in the worst-affected urban areas.It was the first of a cycle of European plague epidemics that continued until the 18th century. There were more than 100 plague epidemics in Europe during this period. The disease recurred in England every two to five years from 1361 to 1480.[62] By the 1370s, England's population was reduced by 50%. The Great Plague of London of 1665–66 was the last major outbreak of the plague in England and killed approximately 100,000 people, 20% of London's population.

Third plague pandemic outbreak was on 1855.The third plague pandemic was a major bubonic plague pandemic that began in Yunnan, China, in 1855 during the fifth year of the Xianfeng Emperor of the Qing dynasty.This episode of bubonic plague spread to all inhabited continents, and ultimately led to more than 12 million deaths in India and China, with about 10 million killed in India alone. Starting in China, it spread into India, where 10 million people died. During this pandemic, the United States saw its first outbreak: the San Francisco plague of 1900–1904. Today, sporadic cases of plague still occur in the western United States.

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It was first identified in December 2019 in Wuhan, Hubei, China, and has resulted in an ongoing pandemic. The first confirmed case has been traced back to 17 November 2019 in Hubei. As of 25 July 2020, more than 15.7 million cases have been reported across 188 countries and territories, resulting in more than 640,000 deaths. More than 9.13 million people have recovered. Covid-19 started in 2019 is still ongoing and leaving the world terrified with its death tolls.