#MODERNA VACCINE SIDE EFFECT TRIAL#

multiple tiny blood spots: red or purple dots or blisters under the skin.

severe or worsening headache or blurred vision.

swelling or a cold feeling in an arm or leg.

It is important to contact medical professionals immediately if you develop these symptoms after vaccination with Janssen or AstraZeneca: The Health Council of the Netherlands advised using the Janssen vaccine in situations in which the advantage of a single vaccination (rather than 2 doses) is very significant. The AstraZeneca vaccine is only given to people born in 1960 or before. Since the risk of this rare side-effect is very low, these vaccines are deployed for some specific groups. This side-effect is referred to as thrombosis with thrombocytopenia syndrome (TTS).

In the context of the AstraZeneca and Janssen vaccines, this can involve a combination of blood clots (thrombosis) with low levels of blood platelets (thrombocytopenia). In very rare cases, more serious side-effects may also occur. Very rare and serious side-effect of Janssen and AstraZeneca vaccines See the questionnaire survey (in Dutch) by Lareb.įor a complete overview of the possible side-effects, see the vaccine package leaflets. Women and young people are more likely to have side-effects after vaccination. The number of people who experience these side-effects after vaccination differs depending on which vaccine they received.

These symptoms start within a day or so after vaccination and go away by themselves, but can be unpleasant. Side-effects such as muscle pain, joint pain, chills, nausea and vomiting may also occur after vaccination with COVID-19 vaccines. Side-effects such as fever, headache and tiredness occur after vaccination with COVID-19 vaccines in a significant proportion of those who are vaccinated. Please read our information sheet or the product information for details on all the known side effects (see links below).Most common side-effects of the COVID-19 vaccines Examples are allergic reactions like shortness of breath, swelling of the face or on the neck and rash. There is no need to contact your doctor about this. Further information about the mild and moderate side effects is provided in our information sheet and in the vaccine’s summary of product characteristics at If, on the other hand, you experience serious symptoms after vaccination, you should contact a doctor. So, if you develop a mild fever or your muscles ache, this is a sign that your immune system is reacting. Mild and moderate side effects, that pass within days, are common after vaccination and usually completely harmless. It is expected that more than half of those vaccinated will get mild side effects lasting for a few days such as tenderness where the injection was given, tiredness and headache.īetween one and two in ten individuals are likely to develop a fever. These new variant-updated vaccines must meet the same high quality requirements as those for the original vaccine.Īll vaccines can cause side effects the Moderna vaccine is no exception. That’s why Moderna, the company behind the vaccine, is currently updating the vaccine to make it protect just as well or better as the original vaccine. However, its efficacy against infection from new variants is lower than its efficacy against the original variant. The vaccine has so far proved to be resistant to the various virus variants and mutations that have emerged in Denmark, including the Omicron variant. To be fully vaccinated with Moderna’s COVID-19 vaccine, you will need two vaccine doses about four weeks apart. The higher the infection rate, the greater the impact of vaccinating people, in overall terms. The benefits that the vaccines bring to the entire population are fewer hospital admissions, fewer severe disease cases and fewer deaths. If you have been vaccinated, you can still get ill if you are exposed to virus, but you will typically have milder symptoms than if you had not been vaccinated.

#MODERNA VACCINE SIDE EFFECT TRIAL#

In other words, there were 94% fewer cases of COVID-19 among the trial subjects given the real vaccine than among those given a placebo. Prior to its authorisation, the Moderna vaccine was tested in major clinical trials with more than 28,000 voluntary trial subjects over the age of 18, and the vaccine demonstrated 94% efficacy against coronavirus two weeks after the second vaccine dose.

The COVID-19 vaccine from Moderna works by strengthening the body’s ability to defend itself against infection with coronavirus (COVID-19).

Moderna vaccine side effect