Mucosal surfaces in the gastrointestinal tract are continually exposed to native. commensal antigens and susceptible to foreign. infectious antigens. Immunoglobulin A (IgA) provides dual humoral responses that create a symbiotic environment for the resident gut microbiota and prevent the invasion of enteric pathogens. https://www.mariameetsanna.com/product-category/okara-color-protection-mask/
OKARA COLOR PROTECTION MASK
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