Vaccines, Immunology and Clinical Trials

Vaccination Advancement

Basically three types of vaccination strategies are used to give vaccines such as pulse vaccination strategy (repeatedly vaccinating over a defined age range), ring vaccination (vaccinating only those who are most likely to be infected) and cocooning (giving booster vaccines to mothers, family members to protect new-born babies becoming infected by them). Vaccine trial or clinical trials are required for the safety and efficacy of the vaccines. Four different phases of trials are present in trial methodology as phase one, phase two, phase three and phase four. Different types of viral, bacterial, parasitic and non-infectious disease vaccines are under research at present time like zika, adenovirus, hepatitis c, leprosy, chagas disease, Alzheimer’s disease and so on.