China Approves the World's First Vaccine against XBB Descendent Lineages of SARS-CoV-2 for Emergency Use

The XBB.1.5 variant had gradually become the major circulating variant in various parts of the world by the beginning of 2023. With the professional guidance and support from the State Council's Joint Prevention and Control Mechanism's vaccine R&D team, the scientific team of WestVac Biopharma/West China Medical Center, Sichuan University overcame all hurdles and successfully developed a vaccine covering XBB family of variants. The XBB.1.5 variant had gradually become the major circulating...

The XBB.1.5 variant had gradually become the major circulating variant in various parts of the world by the beginning of 2023. With the professional guidance and support from the State Council's Joint Prevention and Control Mechanism's vaccine R&D team, the scientific team of WestVac Biopharma/West China Medical Center, Sichuan University overcame all hurdles and successfully developed a vaccine covering XBB family of variants.

Early May, China CDC expert noticed that the transmission and immune escape capability of XBB variants is much stronger than that of the early circulating Omicron variants. The XBB.1 descendent lineages currently predominate SARS-CoV-2 circulation globally. As of the end of May, XBB family of variants accounted for 98.1% of all variants in the United States. In China, newly detected XBB variants have increased gradually and now exceed 90%.

The WHO Technical Advisory Group on COVID-19 Vaccine Composition (TAG-CO-VAC) advised on May 18 that new formulations of COVID-19 vaccines should aim to induce antibody responses that neutralize XBB descendent lineages. The rate of "second infection" is rising. Experts urge prompt prevention, immunization against COVID-19, particularly for people with high-risk infection, the elderly, people with underlying diseases and those who are immunocompromised to get a vaccine covering SARS-CoV-2 variants.

WestVac Biopharma uses the international advanced insect cell recombinant protein vaccine platform to develop Coviccine® Trivalent XBB.1.5 which has been approved for EUA in China. WestVac's COVID-19 vaccine offers a unique option for COVID-19 prevention, is crucial for the prevention of the current XBB descendent lineages and contributes significantly to the ongoing management of the COVID-19 epidemic.

 

About WestVac Biopharma

WestVac Biopharma Co., Ltd. is an innovative biopharmaceutical company, capable of doing the full spectrum of research, manufacturing, and commercialization of products. WestVac Biopharma has been selected successfully on the list of unicorn companies from 2021 to 2023. WestVac Biopharma Co., Ltd. is located in Chengdu of West China while WestVac Biopharma (Guangzhou), a wholly-owned subsidiary company of WestVac Biopharma., is located in Guangzhou Economic Development Zone.

WestVac Biopharma Co., Ltd. has completed construction of 5,000-litre and 3,000-litre insect cell recombinant protein vaccine production lines with an annual production capacity of 100 million doses. The GMP production lines were well established with the "Drug Production License" in place. WestVac Biopharma (Guangzhou) has completed scale-up construction of insect cell recombinant protein vaccine production lines with an annual production capacity of 100 million doses.

In December 2022, Coviccine®-Recombinant COVID-19 Vaccine (Sf9 cell) developed by WestVac Biopharma was approved by relevant authorities for EUA in China.

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