[Image source=EPA Yonhap News]

[Image source=EPA Yonhap News]

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[Asia Economy Reporter Hyun-ui Cho] Amid the rapid spread of the Delta variant worldwide, there is a growing opinion that Janssen COVID-19 vaccine recipients should receive additional Pfizer or Moderna vaccines.


According to major foreign media on the 26th (local time), U.S. infectious disease experts are advocating that Janssen vaccine recipients receive mRNA vaccines as booster shots.


Michael Lin, a professor at Stanford University, stated, "There is no doubt that the protective effect for Janssen vaccine recipients is lower than for others."


Some experts have received booster shots themselves after getting the Janssen vaccine. Jason Gallagher, a professor at Temple University School of Pharmacy who participated in the Janssen vaccine clinical trial last November, recently administered the Pfizer vaccine at the vaccination center he oversees.


Professor Gallagher said, "After seeing UK clinical data showing the low preventive effect of the Janssen vaccine against the Delta variant, I decided to get a heterologous booster shot."


Angela Rasmussen, a researcher at the University of Saskatchewan who received the Janssen vaccine in April this year and recently got the Pfizer vaccine, said, "I strongly recommend booster shots for people living in areas with low vaccination rates among Janssen vaccine recipients."


Dr. Peter Hotez of Baylor College of Medicine also said, "Receiving an additional mRNA vaccine after the Janssen vaccine can enhance preventive effects."



Currently, the U.S. National Institute of Allergy and Infectious Diseases (NIAID) is conducting experiments administering Moderna vaccines as booster shots in addition to approved vaccines.


This content was produced with the assistance of AI translation services.

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