Isolated thunderstorms are when there are either thunderstorms present at the current time or there is a change for them to form, but they are scattered. These usually occur in the afternoon and the evening when the sun is out at its peak and heats up the atmoshpere.
For example, bacteria from the genus Salmonella are mostly facultative anaerobes, oxidase-negative, catalase-positive and gramnegative rods. Most strains are motile and ferment glucose with production of both acid and gas.
A positive test for leukocyte esterase does not necessarily mean you have a UTI. Sexually transmitted diseases will cause an increased amount of WBCâs, and therefore, leukocyte esterase in the vagina. Contamination of the urine with LE from the vagina will give a positive test even though you do not actually have a UTI.