Current models for the exceptional preservation of Burgess Shale fossils have focused on
either the HF‐extractable carbonaceous compressions or the mineral films identified by …

Background Currently, no single US surveillance system can provide estimates of the burden
of all types of health care–associated infections across acute care patient populations. We …

This paper summarizes the results of recent excavations (i982-go) at the Middle Paleolithic
site of Kebara Cave. Work at the cave by earlier excavators is also discussed. Although …

Nucleic acid amplification testing (NAAT) is increasingly being adopted for diagnosis of
Clostridium difficile infection (CDI). Data from 3 states conducting population-based CDI …

Background The magnitude and scope of Clostridium difficile infection in the United States
continue to evolve. Methods In 2011, we performed active population- and laboratory-based …

ContextHepatitis C virus (HCV) infection may resolve (viral clearance), persist without
complications, or cause end-stage liver disease (ESLD). The frequency and determinants of these …

Background A point-prevalence survey that was conducted in the United States in 2011
showed that 4% of hospitalized patients had a health care–associated infection. We repeated …

Background Efforts to prevent Clostridioides difficile infection continue to expand across the
health care spectrum in the United States. Whether these efforts are reducing the national …

Importance Clostridium difficileinfection (CDI) has been increasingly reported among
healthy individuals in the community. Recent data suggest that community-associated CDI …

Importance Carbapenem-resistant Enterobacteriaceae (CRE) are increasingly reported
worldwide as a cause of infections with high-mortality rates. Assessment of the US epidemiology …