World War 3 has already started. You may not have noticed it is a war to the death, because this is combat without bombs or bullets. Our enemy is the SARS-COV-2 virus, which causes Covid-19. It has exactly one purpose conquering your cells and turning them into factories to make more viruses.
COVID-19 has affected the entire world, including Latin America which escaped the horrors of the first two world wars. Brazil had two Covid-19 induced resignations of its national health minister while Mexico has the worst ever daily surge in cases. Covid-19 coronavirus which has just in four to five months claimed 312000 lives and infected 4.64 million. It started from Chinese city of Wuhan. In January 30,202, the WHO director- general categorically stated that their was a medical emergency but that he was opposed to trade or travel bans on flights from Wuhan and other cities in China to the rest of the world.
Herd immunity did not work in Sweden, and anyway getting there will cost 100,000 lives. With a strict quarantine works, but people do not like it. Even putting limits on public behavior is hard. Doctors and nurses were at greater risk. But was a long time ago, masks are widely available now.
Good mask will prevent us from 50 to 90 percent of Covid infections. Every hospital is Covid hospital now. Hospitals are short of beds and medicine every single day. Covid vaccines are also not protecting much even after vaccination people are suffering from Corona virus.