How many nations were originally involved in the creation of the united nations?

Areplacement for the ineffective league of nations, the organization was established on  24  october 1945 after world war ii with the aim of preventing another such conflict. at its founding, the un had  51  member states; there are now 193.13

51  member states.  give brainiest if you . trying to rank up.

Ithink the answer is a :

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.