Spot the difference puzzles are sometimes known as 'Photo hunt' games. The goal is to find a number of differences between two near-identical images, which may be drawings, computer graphics, or photographs. SpotTheDifference.com offers you a massive selection of puzzles and games at all levels of difficulty.
The catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme, catalase, is produced by bacteria that respire using oxygen, and protects them from the toxic by-products of oxygen metabolism.he catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme, catalase, is produced by bacteria that respire using oxygen, and protects them from the toxic by-products of oxygen metabolism.
What does a positive HSV-1 or HSV-2 IgG result mean? A positive result strongly suggests a recent or past HSV infection. The person may be capable of transmitting the virus to others. A small percentage of positive HSV-2 IgG results may be false-positive.1 Further testing may be appropriate for patients with a low or unexpected positive HSV-2 IgG result. The HSV-2 IgG Inhibition, ELISA performed at Focus Diagnostics Reference Laboratory can be used to further characterize the sample and distinguish a false-positive from a true-positive result.