The wMel Wolbachia strain blocks dengue and invades caged Aedes aegypti populations. by Walker, T, Johnson, P, Moreira, L, Iturbe-Ormaetxe, I, Frentiu, F, McMeniman, C, Leong, Y, Dong, Y, Axford, J, Kriesner, P, Lloyd, A, Ritchie, SA, O'Neill, S, Hoffmann, A