That is believed to be what happens, BUT, the symptoms might really be caused by zinc, protein and taurine deficiency instead. Post too long, and should be a document but isn't yet.
measles and respiratory syncytial virus (RSV)enteric infections,covid,norovirus, Mycoplasma Pneumoniae(TB),cytomegalovirus (and cause of its epithelial cell barrier enhancement,parasites ,Giardia, Borrelia)
Understanding the role of vitamin A and its precursors in the immune system
Effects of vitamin A supplementation on intestinal barrier function, growth, total parasitic, and specific Giardia spp infections in Brazilian children: a prospective randomized, double-blind, placebo-controlled trial
Conclusions: These data showed that total parasitic infection and Giardia spp infections were significantly lower in the vitamin A treatment group when compared with the placebo group, suggesting that vitamin A improves the host's defenses against Giardia infections.
Yes, it should be helpful and just what we need in an infection, so the mystery is why can it also be in excess and loaded up in the liver while blood levels are insufficient for an immune response? Maybe because of lack of protein, taurine, zinc, niacin, and phosphatidylethanolamine. ........ I am tired, maybe I shouldn't posted yet, but it has been several days in the works already.
Extra supplementation during infection helps with
measles and respiratory syncytial virus (RSV)enteric infections,covid,norovirus, Mycoplasma Pneumoniae(TB),cytomegalovirus (and cause of its epithelial cell barrier enhancement,parasites ,Giardia, Borrelia)
Understanding the role of vitamin A and its precursors in the immune system
https://www.sciencedirect.com/science/article/abs/pii/S0985056221002156
Effects of vitamin A supplementation on intestinal barrier function, growth, total parasitic, and specific Giardia spp infections in Brazilian children: a prospective randomized, double-blind, placebo-controlled trial
Conclusions: These data showed that total parasitic infection and Giardia spp infections were significantly lower in the vitamin A treatment group when compared with the placebo group, suggesting that vitamin A improves the host's defenses against Giardia infections.
Yes, it should be helpful and just what we need in an infection, so the mystery is why can it also be in excess and loaded up in the liver while blood levels are insufficient for an immune response? Maybe because of lack of protein, taurine, zinc, niacin, and phosphatidylethanolamine. ........ I am tired, maybe I shouldn't posted yet, but it has been several days in the works already.