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There are also certain drugs and health conditions that can increase the likelihood of developing a B12 deficiency such as: alcohol abuse, antacid use, smoking, celiac disease, other digestive concerns, pregnancy, a strict vegetarian or vegan diet, and even natural aging
Companies that provide Certificates of Analysis (COA) for their products offer greater transparency and assurance of purity
Duration: Preclinical studies have lasted about 4 weeks on average
Consensus sequence One approach that has been taken is to design vaccine antigens that are enriched for conserved T and B-cell epitopes either as a consensus sequence (which is the closest natural circulating sequence to a bioinformatically calculated consensus) or as a string of epitopes taken out of their natural context within the viral protein (Fig
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