Verna-Latin-The spring season. A great name for the dog that you adopt in the spring time. Vespera-Latin-The evening star. This girl dog is at her best in the evening. Virginia-Latin-A lady who is pure and virginal.
Mannitol Salt Agar (MSA) is a selective and differential medium. The high concentration of salt (7.5%) selects for members of the genus Staphylococcus, since they can tolerate high saline levels.
MSSA just means that the Staph. aureus bacteria is sensitive to the antibiotic methicillin (therefore may as welljust be called SA). It is a very common organism that can sometimes cause severe infection. It is not a superbug as used to describe MRSA.