Hantavirus is a virus that is found in the urine, saliva, or droppings of infected deer mice and some other wild rodents (cotton rats, rice rats in the southeastern Unites States and the white-footed mouse and the red-backed vole).It causes a rare but serious lung disease called Hantavirus pulmonary syndrome (HPS).antavirus is a virus that is found in the urine, saliva, or droppings of infected deer mice and some other wild rodents (cotton rats, rice rats in the southeastern Unites States and the white-footed mouse and the red-backed vole).
The average gross profit for convenience stores in 2009 was about $477,894. About 20 percent of convenience stores do not sell motor fuel that provides a gross profit margin of only about 6.4 percent.
The type of retail establishment you operate may dictate your ability to raise margins. Specialty retailers and general merchandisers -- department stores -- were the most profitable sector of the retail economy in 2009, according to Fortunemagazine, with a 3.2 percent average profit margin.Food and drug stores operated on a 1.5 percent margin.he number of sales a retail store makes may also influence its profit margin. A store with a high volume of sales can spread the cost of overhead over a larger sales base, and help reduce the margin it charges on each item purchased.