A chromosome (from Greek: ÏÏá¿¶Î¼Î± color and Ïá¿¶Î¼Î± body) is a packaged and organized structure containing most of the DNA of a living organism.
Diphtheria, tetanus and pertussis are prevented by a childhood vaccine, called DTaP, and a newer vaccine for adolescents and adults, called Tdap.
This shot (immunization) protects against diphtheria, tetanus, and whooping cough (pertussis). Five doses are given to all children-one at age 2 months, one at 4 months, one at 6 months, one at 15 to 18 months, and one at 4 to 6 years.