How Coronavirus is spreading and how we can break the Chain.
                     How Coronavirus is spreading 
and how we can break the Chain
Coronavirus spread
• The global number of confirmed cases of COVID-19 has 
surpassed 2 million. Coronavirus has badly hit Europe with 
nearly half of the world’s total cases and United States has 
the highest number of cases than any country in the world. In 
India, cases have spiralled over 18,000. WHO officials have 
said that the worst is yet to  come.
Source: Google Images
Lockdowns
• Countries around the world are currently in some degree of 
“lockdown,” with restaurants and bars, shops, schools and gyms 
closed, and citizens asked to stay home to avoid catching or 
spreading COVID-19, the respiratory illness caused by the novel 
coronavirus, causing daily life to be disrupted. Nearly half the world’s 
population has been confined to their homes.
Source: Google Images
When will it end?
• As the coronavirus shows no signs of slowing down, the end is 
uncertain. Experts predict no return to normal life until mid-
2021, which is when the vaccines will be ready to use. 
Researchers are well on their way to discovering vaccines and 
treatments for the virus, but even in a best-case scenario, 
these are likely to be 12-18 months away.
Source: Google Images
Social distancing
• Until then, extreme social distancing is pretty much the only 
intervention available to help individuals stay healthy, and to 
break the chain of transmission, giving more vulnerable 
populations a fighting chance of surviving this pandemic. The 
elderly and those suffering from chronic diseases are the once 
who are most vulnerable.
Source: Google Images
Reproduction number (R0)
• The purpose of a lockdown is to reduce reproduction, in other 
words, to reduce the number of people each confirmed case 
infects. The goal is to keep reproduction, or “R0,” below one 
(R