Serotype 15C Streptococcus pneumoniae resistant to classical complement deposition and agglutination by polyclonal rabbit anti-capsular 15B sera.

Background: S. pneumoniae (SP) serotypes 15B and 15C are frequent causative agents of invasive pneumococcal disease (IPD), otitis media, and nasopharyngeal colonization in the post PCV13 era. The principal difference between serotypes 15B and 15C is the presence of an O-acetyl group on the pentasaccharide repeating unit of 15B polysaccharide.

Urolithiasis/nephrolithiasis: what's it all about?

Urolithiasis (urinary tract calculi or stones) and nephrolithiasis (kidney calculi or stones) are well-documented common occurrences in the general population of the United States. The etiology of this disorder is multifactorial and is strongly related to dietary lifestyle habits or practices. Proper management of calculi that occur along the urinary tract includes investigation into causative factors in an effort to prevent recurrences.

Laparoscopic radical nephrectomy in renal cell carcinoma.

Historically, the only surgical option for removal of a renal mass was through a large incision in the abdomen. Recently, many urologists have adopted new innovations in the removal of renal masses including laparoscopic radical nephrectomy. The laparoscopic approach to radical nephrectomy has been associated with improved patient outcomes including decreased pain, shorter hospital stay, rapid recovery, and improved aesthetic cosmetic appearance.