These disorders can appear when the immune system attacks some healthy areas of the body as if there is a threat in place. Let’s see what researchers say about the causes that can cause them.
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What kind of mask can be used to prevent transmission of COVID-19 virus?
There are different types of masks, fabric ones, surgical ones those referred to by the acronyms FFP2 and FFP3, which differ in various characteristics related to composition, ability to act