DTaP[edit] DTaP (also DTPa and TDaP) is a combined vaccine against diphtheria, tetanus, and pertussis, in which the component with lower case 'a' is acellular. This is in contrast to whole-cell, inactivated DTP (aka DTwP). The acellular vaccine uses selected antigens of the pertussis pathogen to induce immunity.
The Battle of Pea Ridge was fought March 7-8, 1862, and was an early engagement of the American Civil War (1861-1865). Armies & Commanders: Battle of Pea Ridge - Background: In the wake of the disaster at Wilson's Creek in August 1861, Union forces in Missouri were reorganized into the Army of the Southwest. Numbering around 10,500, this command was given to Brigadier General Samuel R. Curtis with orders to push the Confederates out of the state.
First he attacked at Mechanicsville, then at Gainesâ Mill, Savageâs Station, Frayserâs Farm, and Malvern Hill. The Seven Days Battle took a terrible toll on both armies. Assuming the offensive throughout the week, Leeâs army suffered close to 20,000 casualties. But the Union army lost more than 16,000 men. More important, after the fighting at Malvern Hill, McClellan abandoned his plans to seize Richmond.