Skunks, raccoons, dogs, and cats can also transmit the disease. Human rabies is rare in the United States. There have been only 55 cases diagnosed since 1990. However, between 16,000 and 39,000 people are treated each year for possible exposure to rabies after animal bites.
Acidic dye is defined as a negatively charged dye, which contains one or more acidic groups, such as a sulfo group. A basic dye, on the other hand, is a positively charged stain that is usually synthetic and reacts with negatively charged particles. Continue Reading.
â¢Donât destroy cell arrangements & morphology (shape)! â¢ Simple stain (e.g., crystal violet) â One dye only; shows cell size, shape, arrangement â Many simple stains use cationic, or basic, dyes which are attracted to the negatively charged cell membrane â¢ Differential stain (e.g., Gram stain) â 2 or more dyes two distinguish between different kinds of organisms, or different parts of an organism â¢ Some stains include a mordant (a chemical which helps stain retention) Internal cell structures of prokaryotes