Source(s): I am a Meteorologist. Isolated thunderstorms are especially common during the summer in the mid-late afternoon when it is hot and humid. This is when you see those high towering, popcorn looking clouds in the middle of the afternoon when the sun hits the grounds and heats the air up. Usually isolated storms do not cover a large area.
Salmonella enterica serovar Typhimurium (S. typhimurium) causes enteric disease in humans. It is a food-and water-borne pathogen that can be easily disseminated in a population: for instance outbreaks of salmonellosis can occur by contamination of salad.
Most serotypes of Salmonella, such as Salmonella Javiana and Salmonella Enteritidis cause non-typhoidal Salmonella. Typhoidal Salmonella, which causes typhoid fever, is rare, and is caused by Salmonella Typhi, which is carried only by humans.