COVID: Why so many are catching the virus again? 3 key reasons explained
coronavirus vaccine immunity. Even World Health Organisation (WHO) has pointed out this will happen and that is why we take more than one dose of vaccine. “As we enter the 3rd year of the pandemic, we expect to see some waning over time.
It depends on the type of vaccines you have taken, the number of doses and also age and underlying conditions," WHO's Maria Van Kerkhove said.While there is some waning immunity over time, #COVID19 vaccines remain incredibly effective to prevent severe disease and death.Visiting the WHO Western Pacific Region this week, Dr @mvankerkhove explains ⬇ pic.twitter.com/BnPskAcPcR The Omicron variants, both BA.1 and BA.2, are phylogenetically very different from the earlier strains.
These differences give it a better chance of sneaking past the body's early defences, which were based on exposure to previous Covid infections, a BBC report said. “And so the rates of reinfection have been about 10 times higher this year compared with rates seen earlier in the pandemic." Part of it is a numbers game.
So many of us have already been infected at some point, that a rising proportion of new infections are a second bout, the report also pointed out.
United States
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Cases: 46 252 513
Deaths: 750 423
Recovered: 0
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India
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Cases: 34 321 025
Deaths: 459 652
Recovered: 0
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Brazil
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Cases: 21 835 785
Deaths: 608 235
Recovered: 0
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United Kingdom
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Cases: 9 215 683
Deaths: 141 607
Recovered: 0
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Russia
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Cases: 8 494 589
Deaths: 237 619
Recovered: 0
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