J&J "Janssen Vaccine Neutralizes Delta Variant Within 29 Days After Vaccination" (Update)

"Immune efficacy can be maintained for over at least 8 months"

[Image source=Yonhap News]

[Asia Economy Reporter Kim Suhwan] The Janssen COVID-19 vaccine from the U.S. pharmaceutical company Johnson & Johnson (J&J) has demonstrated strong immune efficacy against the Delta variant, maintaining immune protection for over eight months after completing vaccination.

On the 1st (local time), J&J issued a statement announcing that its Janssen vaccine possesses powerful immune efficacy capable of neutralizing the Delta variant. The company also added that this effect is achieved with the existing vaccination alone, without the need for an additional booster shot to enhance immunity.

The company stated that this immune efficacy was confirmed based on blood samples obtained from eight participants in a recent clinical trial targeting the Delta variant.

A J&J representative said, "We are very pleased that the vaccine can provide immune efficacy against various variants without the need for a booster shot."

Unlike other vaccines that typically require two doses, the Janssen vaccine is administered only once. According to J&J, a single dose of the Janssen vaccine can neutralize the Delta variant within a maximum of 29 days.

Additionally, the company stated that immune efficacy is maintained for at least eight months following vaccination with the Janssen vaccine.

J&J indicated that individuals who have already received the Janssen vaccine are unlikely to require a booster shot for up to one year after vaccination.

Furthermore, even if booster shots become necessary due to the emergence of additional variants, the company expects that minor adjustments to the existing vaccine will be sufficient to provide adequate immune efficacy.

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