The first Known infections from the SARS-COV-2 were discovered In Wuhan, china. The original source of viral transmission to humans remains unclear, as does whether the virus became pathogenic before or after the spillover event. Because many of the early infectees were workers at the Huanan Seafood Market, it has been suggested that the virus might have originated from the market. However, other research indicates that visitors may have introduced the virus to the market, which then facilitated rapid expansion of the infection. Around 80% of people with covid-19 recover without specialist treatment. These people may experience mild, flu-like symptoms. However 1 in 6 people may experience severe symptoms, such as trouble breathing. The new corona virus has spread rapidly in many parts of the world. On March 11, 2020, the world Health Organization (WHO) declared Covid-19 as pandemic. A pandemic occurs when a disease that people are not immune to spreads across large regions. As WHO and partners work together on the response-tracking the pandemic, advising on critical interventions, distributing vital medical supplies to those in need- they are racing to develop and deploy safe and effective vaccines. Vaccine work by training the body’s natural defenses – the immune system – recognize and fight off viruses and bacteria they target. After vaccination, if the body is later exposed to those disease-causing germs, the body is immediately ready to destroy them, preventing illness.
Vaccines are vitally important in protecting not only an individual, but also the larger community. When the majority of people in an area are immunized, it creates a community immunity that helps to protect the vulnerable members of the community who do not have immunity or who have weakened immune systems, including infants, immunocompromised individuals and elderly. “It not only takes a village to raise a child, it takes an immunized village to protect all children and members of the community from vaccine-preventable disease” said Zerr. As an example Zerr said that for highly contagious diseases such as measles, at least nine out of 10 people must have immunity to keep the disease from spreading. When “community immunity” does not exist, it can lead to deadly consequences. The virus having been declared as pandemic can travel quickly through a community and make a lot of people sick. If enough people get sick, it can lead to an outbreak. But when enough people are vaccinated against the Virus, it can’t travel as easily from person to person – and the entire community is less likely to get the disease. That means even people who can’t get vaccinated will have some protection from getting sick. And if a person get infected with the virus, there’s less chance of an outbreak because it’s harder for the disease to spread. Eventually, the virus will become rare or it can be wiped out altogether.
Covid-19 vaccine work by supplementing a person’s immune system and helping their body recognize and fight off viruses that causes the disease. Modern sanitation, safe drinking water, nutritious foods and good hygiene also help prevent disease. However, without the covid-19 vaccine, even healthy people living in clean places and eating balanced diets can acquire potentially deadly disease. Beyond saving lives, this reduction in disease means a reduction in the cost of treating these illness. Which translate into vaccines being not only lifesaving, but money-saving as well. Getting Covid-19 vaccine may offer some natural protection, known as immunity. Current evidence suggests that reinfection is uncommon in the 90 days after initial infection. The risk of severe illness and death from Covid-19 far out weights any benefits of natural immunity. Covid-19 vaccination will help protect you by creating an antibody response without having to experience sickness as well as saving cost.
It's therefore very necessary for all and sundry get themselves vaccinated against the novel corona virus.
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