The level of procalcitonin rises in a response to a proinflammatory stimulus, especially of bacterial origin.

Like many other antifungals and antibiotics, nystatin is of bacterial origin.

Sometimes it is difficult for your doctor to tell if the ear infection is of viral or bacterial origin.

It is found in ribonucleic acids of animal, plant, and bacterial origin.

In 1919 the bacterial origin of the infection was discovered.

The remaining eight sequences were of bacterial origin and were already included in our dataset.

However, the underlying cause can be difficult to confirm, as there is no definitive test able to distinguish between bacterial and non-bacterial origin.

Erosion is the loss of tooth structure due to chemical dissolution by acids not of bacterial origin.

Taken together, these observations support a potential bacterial origin for these components of the nitric oxide signaling pathway.

A possible ancient bacterial origin of these genes has been theorized [ 17 18 19 ] .