Các câu ví dụ cho từ strains

1. The traditional method of vaccine making involves a process of categorizing virus strains, isolating the required one and culturing it while the MultiBac technique allows designing and cloning of genes.

2. The longstanding challenge for Vietnam therefore reemerges: how to curb China’s renewed assertiveness without putting bilateral relations under excessive strains? There is indeed no easy solution for Vietnam to deal with such a challenge.

3. Genital warts are caused by some strains of HPV, which can cause vulva, penile and anal cancer.