Shigella sonnei (the most common species in the U.S.) Shigella flexneri; Shigella boydii; Shigella dysenteriae; The transmission of most Shigella infections is caused by the bacterium passing from stools or soiled fingers of one person to
System maintenance. One advantage of the septic tank/absorption field system is that it has no moving parts, but it does require maintenance. Annual inspections of your septic system are recommended to ensure that it is working properly and to determine when scum and sludge in the septic tank should be cleaned out.
With boundary flags in place, field fully operational and a fully charged Receiver Collar on your dog, use the training lead to escort your dog into the outer edge of the boundary field. When you hear the beeping tone, utter the retreat command while firmly tugging on the lead and lead your dog into the safe zone.