J&J re­ports sec­ond HIV vac­cine reg­i­men fail­ure in 18 months

Af­ter more than four decades, there is still no ap­proved HIV vac­cine. And an­oth­er so-called mo­sa­ic reg­i­men has end­ed in dis­ap­point­ment.

John­son & John­son’s Janssen …

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