Sentence examples for unconfirmed origin from inspiring English sources

In addition, the demographic profile for the multiple mortality events of unconfirmed origin was remarkably similar to that of confirmed respiratory disease outbreaks, which differed from confirmed outbreaks of other diseases (i.e. Ebola, and Anthrax [16]).

An unconfirmed tradition dates the origins of the kingdom to the 4th century ce.

The source of the leak is unconfirmed.

Also in cluster A are two wild-type accessions of unknown geographical origins in A1 ('Regina' and 'Chiltern Seeds'), and 'Jurapê', an unconfirmed collection from Santa Catarina state, in A2.

The origin of S. gordonii (Challis substr CH1) is probably human blood or an endocarditis valve; however, this is unconfirmed (Vickerman M, personal communication).

His claim is unconfirmed.

Rumors flew, unconfirmed.

But it is unconfirmed.