Pfizer, BioNTech halt US COVID vaccine study over recruitment issues

Pfizer and BioNTech have halted a clinical study in the United States for a COVID-19 vaccine, according to an exclusive report from Reuters. The decision was made following significant challenges in recruiting participants for the trial. The recruitment struggles have prompted the companies to temporarily suspend the research, although specific details on the underlying causes have not been disclosed. This development may impact ongoing efforts to develop new vaccines against the virus, but the firms have not commented on future plans or potential resumption of the study.