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Regrettably, I don't believe we know - we don't actually know why influenza is a seasonal disease in the first place. There are a number of possible theories, discussed in this review, but none of them are compelling enough to be a definitive causal explanation In terms of the difference between Influenza A and B, B mutates at a much lower rate, which may ...


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The redden area around the grayish-white indentation of the canker sore isn't filled with anything. This circular area is simply inflamed. The grayish-white area in the center is not filled with puss or anything else as well. This is an area of dead cells but underneath this layer of dead cells the tissue red [1],[2],[3]. Canker sores, Aphthous stomatitis, ...


1

Leukopenia is just a definition. In medicine, there's a saying: Treat the patient, not the numbers. Numbers can mislead people, sometimes quite seriously. Definitions of leukopenia vary: some define it as less than 5,000 WBCs per ┬ÁL of blood; others define it as less than 4,000. Decreases in specific WBCs is usually described as neutropenia, ...


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I know WBC is primarily responsible for fighting infectious micro-organisms, but does it have any significant role in cleaning up body's own malfunctioning or ageing cells? They kill the pathogens, infected, senescent, mutated or unnecessary cells, clean up the cell fragments, clean up the oxidized LDL from the surface or arteries, etc... So I think ...


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It can be spread from human to human through urine but it is very rare seeing as we are relatively clean creatures (most of the time) and our excrement hardly ever comes into contact with other individuals without first being purified. Sources: Leptospirosis CDC: Leptospirosis infection



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