If there is a question of whether the symptoms experienced by an individual described in paragraph (1) of subsection (a) during a manifestation period described in paragraph (2) of such subsection are attributable to COVID–19 resulting from infection with SARS–CoV–2 during the qualifying period of duty, in determining whether a medical examination or medical opinion is necessary to make a decision on the claim within the meaning of
section 5103A(d) of this title, a qualifying period of duty described in subsection (b) of this section shall be treated as if it were active military, naval, or air service for purposes of
section 5103A(d)(2)(B) of this title.