How many Covid jabs have you had? 5 Covid symptoms that show up if you’ve had ‘one’ dose


    Since it was introduced in early-2021, the COVID-19 vaccinations have saved thousands of lives in the UK. They have helped to reduce transmission and reduce the severity of illness experienced by those who fall ill with the virus. However, the vaccine does not stop you developing symptoms. Data from the Zoe Covid study shows just what symptoms are likely if you’ve had one or no doses of the vaccine.

    The Zoe Covid study was set up and developed by a group of researchers from King’s College London. Originally an app, it allowed people to input their symptoms and the researchers to track the changing nature of the virus.

    It was in part due to the Zoe study that the NHS COVID-19 symptoms list was expanded from three to nine symptoms last year.

    As part of their data collection, study has been able to identify which symptoms those with X number of doses are more likely to get.

    For those with one dose, they are more likely to get symptoms similar to those with someone with a cold or flu.

    Those with one dose of the vaccine are more likely to experience:
    • A headache
    • Runny nose
    • Sore throat
    • Sneezing
    • Persistent cough.

    The Zoe study wrote of their findings: “As we can see, after the protection from only once vaccine, one of the original indicators of a persistent cough has made the top five symptoms, but still comes below sneezing and a runny nose in rankings, which were previously thought to be unrelated to infection.”

    What about if I’ve had two vaccine doses?

    The symptoms people experienced if they’d had two doses of the vaccine are similar to those who had just one dose:
    • Sore throat
    • Runny nose
    • Blocked nose
    • Persistent cough
    • Headache.

    On this, the study provided some analysis explaining their findings into the differing symptoms between those who had had different numbers of doses.


    The study wrote: “The previous ‘traditional’ symptoms as still outlined on the government website, such as anosmia (loss of smell), shortness of breath and fever rank way down the list, at six, 29 and eight respectively.

    “A persistent cough now ranks at number five if you’ve had two vaccine doses, so is no longer the top indicator of having COVID. Curiously, we noticed that people who had been vaccinated and then tested positive for COVID-19 were more likely to report sneezing as a symptom compared with those without a jab.

    “If you’ve been vaccinated and start sneezing a lot without an explanation, you should get a COVID test, especially if you are living or working around people who are at greater risk from the disease.”

    As well as data on those who have been vaccinated, there is also some on those who have not had any vaccination at all.

    Those who are unvaccinated are likely to get:
    • Headache
    • Sore throat
    • Runny nose
    • Fever
    • Persistent cough.

    On these symptoms, the Zoe study said: “Loss of smell comes in at number nine and shortness of breath comes far down the list at number 30, indicating the symptoms as recorded previously are changing with the evolving variants of the virus.”

    As of yet, the Zoe study did not release I this data, the symptoms people are more likely to get if they’ve had three doses of the vaccine.

    They also had guidance on what people should do if they develop symptoms, particularly if they start sneezing.

    The authors of the data wrote: “If you’ve been vaccinated and start sneezing a lot without an explanation, you should stay home and get a COVID test, especially if you’re living or working around people who are at greater risk from the disease.

    “Sneezing is a key way that viruses spread. Try to cover all coughs and sneezes with tissue or the inside of your elbow to minimise the spread of droplets. Avoid touching your eyes, nose and mouth until you wash your hands.

    “Sneezing a lot could be a potential sign that someone vaccinated has COVID-19 and, however mild, should take a test and self-isolate to protect their friends, family and colleagues.

    “Whether you’ve had your COVID jabs or not, we all still need to be careful to protect your own health as well as those around you in your family, workplace and community.”


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