Ghost character that when Shakespeare dramatised the poem and expanded Mercutio's role, he introduced a brother for him in order to suggest a more fraternal character. Shakespeare appears to be the first dramatist to have used the name Valentine prior to "Romeo and Juliet", but he himself had actually used the name previously. In "Two Gentlemen of Verona", a play about two brothers and also set in Verona, Valentine is a true and constant lover and Proteus is a fickle one. While not primarily based on it, "Two Gentlemen of Verona" adapts several incidents from Brooke's poem, and in all these instances
Proteus (bacterium) designated as O forms (German "ohne Hauch", without film [i.e., without surface film of mist droplets]). The cell wall O-antigen of certain strains of Proteus, such as OX-2, OX-19, OX-k, crossreact with several species of Rickettsiae. These Proteus antigens can be used in laboratory to detect the presence of antibodies against certain Rickettsiae members in patient's serum. This test is called Weil-Felix reaction after its originators. Proteus (bacterium) Proteus is a genus of Gram-negative Proteobacteria. "Proteus" bacilli are widely distributed in nature as saprophytes, being found in decomposing animal matter, sewage, manure soil, the mammalian intestine, and human and animal