While lymphocytopenia is a common characteristic of patients infected by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). the mechanisms responsible for this depletion are unclear. With the tissue samples of the spleens and lymph nodes (LNs) from six cases. immunohistochemistry demonstrated ACE2 (angiotensin-converting enzyme 2). https://www.megavitamines.shop/product-category/betaine-hcl-pepsin-gentian-bitters/