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The emergence of the much more contagious delta variant of coronavirus has called into question the effectiveness of vaccines, especially since, according to studies so far, the percentage of those who can be vaccinated has increased from 5% to 12%. It is clear that those who have been vaccinated who have become infected do not have severe forms of the disease and rarely get to the hospital.
But can those vaccinated pass on the delta strain? “The probability of getting sick and, implicitly, of transmission is much lower in those who are vaccinated. There is no perfect vaccine for any communicable disease.
But those who are vaccinated have an 8-10 times lower risk of getting the disease than those who are not vaccinated. For the Delta strain it is a bit lower, but the forms that require hospitalization and death are prevented. Under these conditions, the hospitals will not be overcrowded “, explained Dr. Alexandru Rafila, Romania’s representative at the WHO, for adevarul.ro.
Public health professor Răzvan Cherecheș says that when a person is vaccinated, the immune system “learns” to make antibodies against the spike protein, which is the capsule around the virus.
When the person – after taking both doses – comes in contact with the virus, it enters the body. At that moment, officially, the person is exposed to the infection: the virus enters the body and begins to multiply.
The difference is that the person’s immune system recognizes the spike protein and begins to instantly produce antibodies, which begin to attack the viruses that are produced. We know from studies that somewhere between 70% and 90% of those who have been vaccinated do not get infected or transmit the infection – measurably speaking.
That is, even if they have been exposed to the infection, their immune system is strong enough to instantly annihilate the multiplying viruses. Well, for the rest, the immune system is likely to be a little slower, and then the rate at which viruses multiply is faster than the rate at which they are destroyed.
They make light or medium shapes. They can also transmit the infection, but the probability of transmission is much, much lower than for those who are not vaccinated “, said prof. Răzvan Cherecheş, for truth.
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