Vaccinated But Still Infected With COVID-19? Here Are 4 Reasons Why

New Delhi: The protective effects of the vaccination will be at their highest two weeks after the second dose of COVID-19.

However, if an individual still gets infected with COVID-19 after being fully vaccinated, this means that the person is suffering a "breakthrough" infection, which is similar to regular COVID-19 infection in unvaccinated people.

The symptoms experienced by a person suffering from breakthrough infection include headache, runny nose, sneezing, sore throat and loss of smell. On the other hand, the most common symptoms experienced by an unvaccinated person are fever and persistent cough.

A study has revealed that people having breakthrough infections are 58% less likely to have fever than an unvaccinated person.

In research done in the United Kingdom, it was found that one person in every 500 suffers from a breakthrough infection even when they are fully vaccinated.

There are four factors that control the risk of getting infected by Covid 19 even after a person is fully vaccinated.

1. Vaccination Type

It has been revealed in a clinical trial that the risk of symptoms developed during Covid-19 infection is reduced by 94% when a person is administered the Moderna vaccine, while Pfizer vaccine reduces the risk by 95%, Johnson & Johnson by 66% and AstraZeneca by 70%.

2. Time Since Vaccination

Early research has revealed that the Pfizer vaccine's efficiency fades over a period of six months after vaccination. It is still unknown when the efficiency of double doses fade away.

3. Variants

The variant of the virus that a person is facing is also a very important factor. Studies have revealed that two doses of the Pfizer vaccine are slightly less protective when facing the Alpha variant. The risk of getting COVID-19 symptoms is reduced by 90%. The risk is far more reduced by 88%when facing the Delta variant.

4. Immune System 

The risk of getting infected by COVID-19 differs from person to person. A person's level of immunity and other person-specific factors will determine how much a person risks getting infected by the virus. 

People who are older in age have slightly weaker immunity than the younger generation. Also, the chronic medical illness will impair their response to vaccinations.

These factors may vary from person to person but it is always a good idea to be mindful of our lifestyles and take protective measures as necessary.

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