Active Bacterial Core Surveillance (ABCs)
Special studies for the ABCs project include enhanced surveillance for early- and late-onset (0-89 days) group B Streptococcus disease, invasive pneumococcal disease in children less than 3 months to 18 years, neonatal sepsis surveillance, and pneumococcal conjugate vaccine effectiveness evaluations in children and adults.
Information collected through the ABCs project contributed to revised CDC guidelines about universal screening of pregnant women for group B Streptococcus infections, prevention of group A Streptococcus infections among certain groups of people, and enhancement of surveillance for MRSA and drug-resistant Streptococcus pneumoniae.
The most up-to-date information for diseases followed by the ABCs program is on the CDC’s website:
Pneumococcal Disease (Streptococcus pneumoniae)
GBS Group B Strep Case-Control Study
This page last updated 3/19/2021.