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United States

US 12,697,380 B2

Attenuated virus of flavivirus virus and use thereof

US 12,697,380 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-04. Applicant: Zhejiang Free Trade Zone Hongan Base Biotechnology Co., Ltd. Its PDF downloads from this page without an account, up to 5 a day.

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Applicant
Zhejiang Free Trade Zone Hongan Base Biotechnology Co., Ltd.
Inventors
Bo ZHANG; Hanqing YE; Yanan ZHANG; Na LI; Qiuyan ZHANG; Chenglin DENG; Shaopeng YUAN; Shunli ZHAN; Lei GAO
Publication date
2026-08-04
Filing date
2023-06-21
Document type
B2 Granted patent
Also written as
US 12,697,380 B2 · US12697380 · 12697380

Abstract

Provided are an attenuated virus of a flavivirus virus and the use thereof. The attenuated virus comprises a polyadenylic acid (poly(A)) sequence, wherein the polyadenylic acid (poly(A)) is used for replacing a part of the nucleotide sequence of a 3′ untranslated region (3′UTR) of the flavivirus virus, so that the 3′ untranslated region (3′UTR) of the attenuated virus obtained after the part of the nucleotide sequence of the flavivirus virus is replaced at least retains a 3′-end stem loop region (3′SL).…

The opening of the abstract. The full text is in the PDF.

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Patent office website: United States Patent and Trademark Office (USPTO)

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