BCG Vaccination Clinical Trial
Official title:
Role of BCG Vaccination as Booster on Salmonella Typhi Vaccine
The BCG (bacillus Calmette-Guerin) vaccine is used for the protection against tuberculosis.
Apart from it's protective effect against tuberculosis BCG vaccine has been shown to have
non-specific effects on the innate immune system and is in epidemiological studies
associated with reduced mortality due to infectious diseases.
Several studies have shown that BCG can boost the effect of other vaccines. The present
study aims to investigate the boosting effect of BCG on the response to typhoid fever
vaccine (TFV) and to assess the non-specific effects of BCG on the innate immune system at
early timepoints by vaccinating volunteers with either TFV alone or BCG followed by TFV 14
days later.
The study hypothesis is that when BCG is given 14 days before typhoid fever vaccine a better
vaccination result in terms of antibody production will be accomplished against typhoid
fever due to the effects of BCG on the innate immune system.
n/a
Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Basic Science
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