Most of the biowarfare research using viruses which causes Aids and Ebola was predominantly carried out in Germany and Japan until 1945 and since then mainly in the USA and France, using Nazi and Japanese (military) scientific war criminals. The Revealing Voices of Aids/HIV Theory Dissidents.
copula - an equating verb (such as `be' or `become') that links the subject with the complement of a sentence. copulative, linking verb. verb - a content word that denotes an action, occurrence, or state of existence.
A fistula is an abnormal, tube-like connection that forms between two organs or vessels that are lined with epithelial cells. Fistulas are generally the result of a disease condition, but artificial fistulas may also be surgically created for therapy.