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.
The Battle of Antietam began at dawn on September 17 as the fog lifted. Longstreetâs and Hillâs units formed the Confederate right and center flanks to the west of Antietam Creek, while Jacksonâs and Brigadier General John G. Walkerâs units formed the Confederate left flank. All of Leeâs troops were worn-out and hungry, and many were sick.