1 Outdoor air pollution can cause ongoing throat irritation. Indoor pollution â tobacco smoke or chemicals â also can cause a chronic sore throat. Chewing tobacco, drinking alcohol and eating spicy foods also can irritate your throat.  Muscle strain.
Biosecurity is key to productive aquaculture systems. Biosecurity encompasses all measures designed to prevent diseases from occurring and from spreading by isolating, as much as possible, animal farm populations from external contamination. Recurring or prolonged contact with external environments (water, sediment, wildlife) favors the development of new diseases.
When grown on ordinary agar, the organism forms spherical smooth colonies about two to four millimeters in diameter. When grown on Hektoen enteric agar, colonies are bluish-green with black centres, indicating that the species does not ferment lactose (common to many Salmonella species).The use of Hektoen enteric agar is designed for detection of these types of bacteria. Figure 1.hen grown on Hektoen enteric agar, colonies are bluish-green with black centres, indicating that the species does not ferment lactose (common to many Salmonella species). The use of Hektoen enteric agar is designed for detection of these types of bacteria.