Past tense, please check my sentence.

[learner98]

Thus, he is recognised internationally and domestically as being among the top virologists who have 'saved' Malaysia from many a viral-based disease epidemic.

 

[Raymott]

Thus, he is recognised internationally and domestically as being among the top virologists who have 'saved' Malaysia from many a viral-based disease epidemic.

Is he recognised only as one of the top virologists who has saved Malaysia many times, or as unrestrictedly one of the top virologists? If the former, then your sentence is right, but I wouldn't quote 'saved'.