Beijing, Jan 15 (TIWN) Amid the news of deaths of 23 elderly Norwegian people who received Pfizer's mRNA-based Covid-19 vaccine, Chinese health experts have called on Norway and other countries to suspend the use of it, especially among elderly people due to the vaccines' safety uncertainties.

According to a Chinese immunologist, the new mRNA vaccine was developed in haste and had never been used on a large scale for the prevention of infectious disease, and its safety had not been confirmed for large-scale use in humans. As of Thursday, Norway has reported 23 deaths in connection with the vaccination, Global Times reported on Friday.