tokens: These findings illustrate gain-of-function as a feasible strategy for developing safer live-attenuated HIVs to be tested as candidates for AIDS vaccine .
folded_tokens: these findings illustrate gain-of-function as a feasible strategy for developing safer live-attenuated hivs to be tested as candidates for aids vaccine .
labels: O O O B-other_name O O O O O O O B-virus B-virus O O O O O O B-other_name I-other_name O