New variants of the Sars-CoV-2 virus and widespread reinfections raise questions about how long immunity lasts after Covid-19. Mainly because it is not permanent, unlike other infections such as measles, just to illustrate. On the other hand, according to experts, after the manifestation of Covid, there is a certain time of protection.

According to experts, after the manifestation of Covid there is a certain time of protection – Photo: FaustFoto / Freepik / ND

The most acceptable immunity window after Covid is 3 months to 5 years. What is no longer accepted is that being infected with Covid-19 will be enough to prevent you from getting sick again. Thus, the duration of protection depends on the variants of the virus, as well as on the vaccination of each person.

In fact, the script has changed slightly from the Ômicron variant and its sub-variants. Thus, some doubts are common. Check out some of them below.

What are the symptoms of Covid-19 in those who have already received the vaccine?

Despite the strengthening of immunity after Covid, the virus can manifest itself with symptoms. Even those who have already received the vaccine. Among the most common symptoms of Covid-19 in those who have been vaccinated with two or more doses are:

• Runny nose
• Headache
• sneezing
• Sore throat
• Persistent cough.

Not only those who have good immunity, but also those who have not been vaccinated, the symptoms are usually more intense. Mostly headaches and sore throats. In addition, there is a fever.

How soon after contracting Covid-19 can I get vaccinated?

Either for the first dose or for any booster dose, there is a waiting time for the Covid-19 vaccine in case of exposure to the virus. You must wait four weeks from the onset of Covid symptoms.

According to the Ministry of Health, those who have been ill must wait four weeks until they fully recover in order to be vaccinated later.

Even with immunity after Covid, is there a re-infection?

Yes, there is re-infection with Covid-19. This shows that immunity after Covid is not for life. In addition, variants can cause reinfection.

According to experts, immunity (including from the vaccine) decreases over time. Thus, the more time passes since the vaccination or the last infection, the higher the likelihood of a new infection.

What are the possible symptoms after Covid-19?

Some people can become infected, go asymptomatic and become immune after Covid. Therefore, there may be doubts about post-COVID symptoms. First, the so-called consequences are present in more severe cases of the disease. Among them:

• From feeling tired and having difficulty breathing to lung problems;
• Heart damage and arrhythmias;
• Decreased cognitive function, difficulty concentrating, increased stress and anxiety.

Can diarrhea be a symptom of Covid-19?

In some cases, yes, diarrhea can be a symptom of Covid-19. According to a scientific article published in the Journal of the American Medical Association, a 2020 study of 138 patients found that 10% had diarrhea at their first symptoms. However, with the increase in immunity after Covid, this symptom has become rare.

Undoubtedly, diarrhea can be a symptom of some kind of viral infection. However, this is not related to the most common effects in Covid-19 cases.