A candidate vaccine against Lyme disease has been given a boost following a collaboration announced on 30 April between the vaccine’s developer Valneva SE and Pfizer Inc. The vaccine, VLA15, is currently in Phase 2 as a prophylactic treatment against Lyme disease. Under the agreement, Valneva will fund 30% of development costs up to regulatory submission. Pfizer will lead late-stage development and be responsible for commercialisation, paying Valneva tiered royalties on product sales starting at 19%.