How Long Does Immunity Last After Overcoming COVID?

Throughout the pandemic, o ne of the biggest unknowns about the coronavirus has actually been for how long people are immune after they catch it and recuperate. Early signs were that it needs to provide some resistance, because if several infections were possible, they would most likely be common. However even a year-plus into the health crisis, the exact length of that defense isn’t clear.

A current study from the UK provides some more data, recommending that after a person recovers from COVID-19, their possibility of getting the infection is decreased by at least 83% for a minimum of 5 months. The research study followed 20,000 health care employees, consisting of 6,614 participants who had tested favorable for antibodies. Compared to those who hadn’t contracted COVID, those who had were 83% less likely to be contaminated once again. The actual protection might be greater than that, since the investigators discovered 44 “possible” reinfections because group.

The research study hasn’t been peer-reviewed, however you can read numerous experts’ responses here at the UK’s Science Media Centre, and comprehensive news stories like this one from Nature that offer context.


The research study’s outcomes more or less concur with previous work, including this research study that discovered healthcare employees with spike protein antibodies had much better than 90% security for 6 months.

CDC guidelines mention that individuals who have actually had COVID within the last three months do not require to quarantine if they are exposed once again. That sure makes it sound like individuals are immune for three months, however they go on to clarify:

Proof does not indicate the definitive lack of re-infection during this period, just that threats of potential SARS-CoV-2 transmission from recuperated individuals are likely outweighed by the personal and societal advantages of preventing unnecessary quarantine.

Simply put, it may be possible to become contaminated again within three months, but it does not seem to be most likely.


What does this mean if I’ve had COVID?

We have actually been living through a time of a lot unpredictability, with a lot of unanswered concerns, and unfortunately this is still yet another gray location. Over the next year or 2 we’ll probably get a better sense of the length of time protection lasts. (That applies to the vaccine, too: we understand it works for a minimum of two months, however it hasn’t b een around enough time for us to know whether immunity fades after months, or years, or lasts for a life time.).


So, here’s what experts are recommending: First, you might find it reassuring to understand you probably have some defense. That’s great news. But it’s not actionable news: You still need to do basically the exact same stuff as the rest people.

It’s still crucial to wear masks, for instance, and to abide by all the normal social distancing rules. Do not think you can stand close and cough on individuals easily or anything like that.


You need to also still get the vaccine when it appears for you. The CDC states that you shouldn’t get the vaccine while you have actually COVID, but that getting vaccinated after you have actually recuperated is great. If you got antibody treatment while you were sick, that might be a factor to delay vaccination, but the infection itself is not.

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