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I think they feed some sort of sulphur , but you should consult a vet ,

It isn't going to happen for influenza because the virus undergoes a change precluding recognition by the immune system nearly every season. As for the "common cold", there are myriads of viral species and subspecies(variants) in the...

Helper T cells are essential in determining B cell antibody class switching, in the activation and growth of cytotoxic T cells. So T helper cells regulate the activation of both cytotoxic T cells and antibody...

An antigen is a foreign protein (such as bacteria or virus). I called it foreign because it is not a normal part of your body. Your cell membranes are designed to recognize that those substances are foreign...

Memory B-cells

I'm pretty sure its mutations, mutations create the new species.

...) titers are also seen in chronic infection (and in acute infection ). Only with immunity due to natural infection that has resolved, or with immunity due to immunization...

If you have an infection , your immunity system is fighting it and your body...a larger area, get to a doctor quickly. An infection can cause a lot of damage to different parts of the body...