Activists gathered outside schools, handing over what they claim to be legal documents or "liability notices" to principals, warning them not to vaccinate children.
Ahead of government decision to extend UK curriculum vaccination against Covid for 12 to 15 year olds has been announcedHowever, debate continued on whether the vaccine should be offered to healthy children, who are much less exposed to the virus than older groups.
But alongside a real discussion, campaigners opposed to the vaccine have been spreading misinformation.
Fake consent form
A fake vaccine consent letter, claiming to be from the NHS, has been sent to schools in England.
Letter incorrectly stated that there was "one chance in 29,389 to die from the vaccine ", comparing that with the extremely low risk of child death from the virus.
The figure appears to have been taken from the Yellow Card scheme of the Consumer Regulatory Agency. drugs and health products, for people to report any suspicious effects - effects after vaccination.
About 49 million people have received at least one dose of the vaccine and about 1,600 deaths have been recorded.Registered in the program so far.
But someone dies after a jab doesn't mean the vaccine is responsible.
People die every day from all kinds of causes and most of the adult population has now been vaccinated, including the vast majority of those most at risk of death - the elderly or those suffering from underlying diseases.
The MHRA is investigating reported side effects, including deaths, to see if they are higher in people vaccinated than one would normally expect in the population - which generally has not been.
As of August, the Office for National Statistics (ONS) recorded nine deaths to which the vaccine was found to have contributed, five of which had the vaccine as an underlying cause.
This was determined by the doctors who examined the patient and had access to his medical file and his test results.
This suggests a riskdeaths in five million.
On the other hand, the risk of dying from Covid if you are not vaccinated has been estimated at 0.8% or 35,000 deaths per five million for all ages.
And there have been 161,000 deaths so far where Covid has been found to be an underlying cause, including at least 76 children, according to ONS records.
UK Joint Committee on Vaccination and Immunization (JCVI), which produces recommendations for the government, said the benefits of the vaccine for 12 to 15 year olds outweighed the risks.
Form also suggests vaccine may not prevent people from catching Covid or to transmit it.
In fact, the vaccine cuts the chances of catching the virus by about half, and even if someone does get it, it reduces the amount of virus in the system. which makes it less likely that they pass it on.
Adolescents 'very slightly but really high risk of developing a disease called myocarditis - inflammation of the heart - after vaccination was highlighted by campaigners opposed to strokes Covid.
They focus on these rare negative vaccine events while minimizing the chances of children catching the virus - including "long Covid ".
Most cases of myocarditis after vaccination resolved quickly after treatment.
This is about balancing the risks.
Image caption, A meme circulating riffsonline on a common comparison of the vaccine to seat belts as a risk -reduction tool
The JCVI estimates that a single first dose of the Pfizer vaccine prevents 87 Covid- d ' related hospitalizations per million children, but accompanied by a risk of three to 17 cases of vaccine-induced myocarditis per million children.
The second dose is estimated to prevent six more hospitalizations per million, but risks an additional 12-34 cases of myocarditis - which is why the chief doctors decided to recommend only 'a single dose.
Myocarditis is actually more common after catching Covid t han after the vaccine.
But the MRHA says it is important for everyone who experiences a "new onset of symptoms such as chest pain, shortness of breath, or a feeling of having a fast beating, pulsating, or pounding heart " after the vaccine requires poor carecaux.
It is difficult to determine how many people are actively campaigning against the vaccine for children - but there is evidence that it is less than they wouldn't want people to think so.
Several seemingly popular groups have sprung up, appearing to operate separately - but they seem to consist of a relatively small number of overlapping members.
Another member discussed sharing research from a third vaccine deterrent, the UK Ivermectin Recommendation and Development Group, because psychologically it then looks like two professional groups agreeing to one another with each other (making the content more believable as it looks like two distinct groups) ".
Members of these organizations also have links to Us for Them, which indicates that it represents parents, and the Safer to Wait campaign group.
Its founder can be seen in the Hart members chat
These campaigns appear to have a wide reach, with protests in schools across the UK.