Currently, the emergence of a novel human coronavirus, SARS-CoV-2, ……... …………...a global health concern causing severe respiratory tract infections in humans.
A) Have become B) Becoming C)Became D)Had become E) Has become
Human-to-human transmissions ………. with incubation times between 2-10 days, facilitating its spread via droplets, contaminated hands or surfaces.
A) describes B) is describing C)have described
D)have been described E) were described
It’s part of a broader strategy of cell-based treatments that scientists are beginning to explore for treating cancer ……….. infectious disease. A) due to B) as well as C)in spite of D)despite of E) as much
