Why are there Doubts about Vaccines Efficacy yet in 2018?

Despite many articles that have been already published in this Cohesive Journal of Microbiology and Infectious Disease, it is important to stress that some of them are not necessarily in agreement with the view of this editor. Especially the ones called “opinion”, in which their authors expresses what they think. But even when a scientist thinks in writing, it is good tone to show some references, because if they can’t reference their opinion, there might be some references in return showing disagreement or contradictions to their simplistic view. If you don’t believe in vaccines, for example, you should reference which vaccine does not work and why, scientifically, so that the discussion should be open to anyone who would like to debate it. Generalizations are not scientific, not safe and do not contribute to the scientific advancement of knowledge.