Update: July 28, 2021: For important results of the study, see

The novel coronavirus SARS-COV-2 causes the pandemic infectious disease Covid-19. The disease has spread almost worldwide since the beginning of 2020. In addition to rules of conduct, the vaccination, which has been available since December 2020, is one of the most important countermeasures to prevent the virus from spreading. On December 22, 2020, after approval by the EU Commission, the Paul Ehrlich Institute issued the first approval of a vaccine in Germany. The vaccine from the manufacturer Biontech has been distributed to the countries' delivery centers since then. The states regulate the further distribution to the regional vaccination centers. Initially, old people's and nursing homes as well as other groups of people with the highest priority will be provided with the vaccine.

According to the available data, the approved vaccines have a positive effect and side effect profile. As with other vaccinations, headaches can occur in over 50% of those vaccinated. The International Headache Classification ICHD-3 does not yet classify headaches that develop in connection with a vaccination. In this respect, it is a type of headache that has so far been largely unknown.

The vaccination campaign against Covid-19 that is now being carried out makes it possible to broadly record a new form of headache that can occur in connection with a vaccination.

An international research group from the Kiel Pain Clinic, the University Hospital Schleswig-Holstein and the University of Sharjah, United Arab Emirates, is analyzing these headaches precisely for the first time using an online survey. Anyone who has experienced a headache after a CoViD-19 vaccination can take part in the study. The study is anonymous. The Ethics Committee of the Medical Faculty of the University of Kiel has voted in favor. An important goal of this study is a better understanding of these headaches, their prevention and treatment.

The online questionnaire is available on the Internet:

https:// painklinik.de/impfung

Participation takes approximately 10 minutes. The questionnaire is available in German, English and Arabic.

A reference to the study and passing on the link would greatly support the survey.

Please also pass on the link to people who experience headaches after a CoViD-19 vaccination.

Kind regards and many thanks
for the study team:

Dr.
med. Carl H. Göbel MB BChir (Hons) MA (Cantab) Clinic for Neurology
Campus Lübeck, University Hospital Schleswig-Holstein
Ratzeburger Allee 160
23538 Lübeck

Prof. Dr. med.
Thomas F. Münte Director of the Clinic for Neurology
Campus Lübeck, University Hospital Schleswig-Holstein
Ratzeburger Allee 160, 23538 Lübeck

Prof. Dr.
med. Dipl.-Psych. Hartmut Göbel Pain Clinic Kiel
Heikendorfer Weg 9-27
24149 Kiel