Human created Coronavirus is patentable.
For example, the CDC patented a newly isolated human coronavirus (SARS-CoV),
https://patents.google.com/patent/US7776521B1/en
https://patents.google.com/patent/US7220852B1/en
Naturally occurring, isolated DNA sequences are not patentable since they are a natural phenomenon. Assoc. for Molecular Pathology v. Myriad Genetics, Inc., 569 U.S. 576 (2013)
Thus, the phrasing of the claim is important.
1. An isolated nucleic acid molecule consisting of the nucleotide sequence as set forth in SEQ ID NO: 1.