Volume 21, Number 4—April 2015

Perspective

Reappearance of Chikungunya, Formerly Called Dengue, in the Americas

S. B. Halstead

The syndrome was renamed in the twentieth century after it was shown to differ from dengue.

Synopses

Hantavirus Pulmonary Syndrome , Southern Chile, 1995–2012

R. Riquelme et al.

Early clinical suspicion should prompt urgent transfer of patients to a hospital with intensive care facilities.

Medscape CME Activity

Animal-Associated Exposure to Rabies Virus among Travelers, 1997–2012

P. Gautret et al.

No demographic characteristics identified who might benefit most from pretravel counseling.

Evolution of Ebola Virus Disease from Exotic Infection to Global Health Priority, Liberia, Mid-2014

M. Arwady et al.

As the disease spread, the scale of the epidemic required a multi-faceted public health response.

Research

Population Structure and Antimicrobial Resistance of Invasive Serotype IV Group B Streptococcus, Toronto, Ontario, Canada

S. Teatero et al.

Conjugate vaccines should include polysaccharide or virulence proteins of this serotype to provide complete protection.

Norovirus Genotype Profiles Associated with Foodborne Transmission, 1999–2012

L. Verhoef et al.

Foodborne transmission accounts for 10% of outbreaks caused by GII.4, 27% by all other single genotypes, and 37% by mixtures of GII.4 and others

Medscape CME Activity

Deaths Associated with Respiratory Syncytial and Influenza Viruses among Persons ≥5 Years of Age in HIV-Prevalent Area, South Africa, 1998–2009

C. Cohen et al.

Mortality rates were higher among HIV-positive persons and older persons who had influenza.

Deaths Associated with Respiratory Viruses in HIV-Prevalent Area

Sequence Variability and Geographic Distribution of Lassa Virus, Sierra Leone

T. A. Leski et al.

Circulating strains cluster geographically and belong to at least 5 distinct clades.

Influenza A(H7N9) Virus Transmission between Finches and Poultry

J. C. Jones et al.

Transmission via shared water implicates passerine birds as possible vectors for dissemination of this virus.

Highly Pathogenic Avian Influenza A(H5N1) Virus Infection among Workers at Live Bird Markets, Bangladesh, 2009–2010

S. Nasreen et al.

Evidence of infection was low despite frequent exposure to infected poultry and low use of personal protective equipment.

Increased Risk for Group B Streptococcus Sepsis in Young Infants Exposed to HIV, Soweto, South Africa, 2004–2008

C. L. Cutland et al.

Vaccination of pregnant women could prevent 2,105 invasive GBS cases and 278 deaths among infants annually.

Dispatches

Letters