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.
Approximately 25% of urine specimens containing bacteria will have a positive protein reaction as the only positive dipstick reaction. The esterase reagent is sensitive to 15 leukocytes per hpf, but the protein reagent is sensitive to 6 leukocytes per hpf.