Side effects of Pfizer's New Crown Vaccine Phase III clinical trials are still under investigation.

Pfizer's new crown vaccine also had a twist this week after AstraZeneta suspended clinical trials last week due to adverse reactions in its subjects.
(Reuters) - Participants who were given Pfizer-developed new crown vaccine vaccine or placebo had mild to moderate side effects in Phase III clinical trials, Pfizer said on Tuesday.
side effects include fatigue, headache, chills and muscle pain.
some of the participants also developed fever symptoms, including high fever.
because the data came from a double-blind trial, Pfizer and the participants did not know who received the vaccine or a placebo.
, however, Kathrin Jansen, Pfizer's head of vaccine research and development, noted that independent data monitoring committees "have access to non-blind data, so if they have any security concerns, they will notify us in a timely manner."
they haven't done that yet.
said it had recruited 29,000 people in Phase III clinical trials to test their experimental coronary vaccine, developed in partnership with German partner BioNTech.
, it plans to increase the number of clinical trials to 44,000.
Pfizer executives told an investor conference call that more than 12,000 trial participants have been given a second dose of the vaccine so far.
the twist, Pfizer said its scientists were also watching for worrying adverse events.
so far, fatigue is by far the most common side effect of the trial, according to Pfizer.
's new AstraZeneta vaccine, which had previously been suspended due to side effects, has resumed clinical trials in the UK and Brazil after being approved by the UK regulator's Drug and Health Products Regulatory Agency, while trials in the US remain on hold pending an FDA investigation.
Lin Yiling Source: E.O. Copyright Notice: All text, images and audio and video materials on this website that indicate "Source: Met Medical" or "Source: MedSci Original" are owned by Metz Medical and may not be reproduced by any media, website or individual without authorization, and shall be reproduced with the words "Source: Mets Medicine".
all reprinted articles on this website are for the purpose of transmitting more information and clearly indicate the source and author, and media or individuals who do not wish to be reproduced may contact us and we will delete them immediately.
reproduce content at the same time does not represent the position of this site.
leave a message here.