Stools collection or anorectal swab samples (optional) clinical trials

Nasopharyngeal Carriage of S. Pneumoniae

This study is looking at how two vaccines, introduced in 2001 and 2010, have affected the types of bacteria (Streptococcus pneumoniae) found in children and whether these bacteria have become more resistant to antibiotics over time. Researchers are focusing on children aged 6 months to 15 years in France.