Why Corona virus come as soon
Answers
Answer:
Once a person has contracted coronavirus, it can take 2–14 daysTrusted Source for symptoms to appear. The average incubation period appears to be roughly 5–6 daysTrusted Source.
According to the World Health Organization (WHO)Trusted Source, symptoms of coronavirus can be mild and come on gradually. According to The Lancet, when hospital admission is necessary, this typically occurs from 7 days onwards.
The Centers for Disease Control and Prevention (CDC)Trusted Source state that a person with COVID-19 can experience a wide range of symptoms, often including a dry cough and shortness of breath.
They may also have a combination of at least two of the following symptoms:
fever
chills
repeated shaking with chills
muscle pain
headache
sore throat
new loss of taste or smell
Answer:
Given the high levels of circulating virus, the third wave of coronavirus is inevitable but the time scale is not clear, the government's principal scientific advisor K Vijay Raghavan said, explaining how the biology of the virus has changed between the first and the second wave. In the third phase of the pandemic, there will be adaptive pressure on the virus for new kinds of changes as a large number of the population will get vaccinated.
Variants are only one factor of the huge second wave of the Covid-19 that is sweeping the country now, the government's principal scientific advisor K Vijay Raghavan said on Wednesday. As new variants of a virus are natural, the existing variants will make way for new variants which may or may not be more virulent, but variants should not make any difference in people's primary approach to combat Covid-19, which should consist of maintaining social distancing, the expert said. While in 2019 and 2020, the virus continued to be a generalist, like a key that can be fitted into many locks, the virus in 2021 became much fitter and efficient as it is trying a "hit and run lifestyle" to gain entry to the human body. In the coming days, the virus will become more efficient as immunity, vaccination are building adaptive pressure on the virus.
Explanation:
Third wave of Covid inevitable, says government
> Immunity, developed after the first wave, is not widespread. The number of people who remained unaffected because of cautionary steps taken in the first step may have been large. Immunity can also fade. Someone infected earlier can get reinfected but we know that the protection is still very high after eight months.
> In 2019, when the virus emerged, it was a generalist. It could infect many mammals and was not a tightly human-adaptive virus. The lineage continued for a long period. In the second phase, which started in October 2020, the virus became fitter. "It was a key that could fit many locks," the expert said adding that with the increase in the transmission, the key became more refined.