Infectious Disease

A second health care worker who tested positive for the Ebola virus traveled by air the day before her symptoms appeared.

The vaccine that prevents illness and death from pneumococcal infection also combats severe antibiotic-resistant disease in young children.

Investigators are working to resolve how a health care worker in Texas contracted the Ebola virus while caring for an infected patient.

Roughly half of all patients hospitalized between May 2011 and September 2011 received at least 1 antimicrobial drug.

Five US airports that receive the majority of travelers from West African nations will add new layers of entry screening.

Although many policymakers recommend universal screening for methicillin-resistant Staphylococcus aureus infection, individual hospitals may lack the funding to execute it.

World Health Organization officials are stressing that clinical trials on Ebola vaccine candidates need to be expedited.

Parents who know about the human papillomavirus are not more likely to get their adolescent daughters vaccinated.

We will soon have a wartime economy against an enemy that we can't even see.

The drugmaker will no longer pursue FDA approval of its dual daclatasvir and asunaprevir treatment for patients with hepatitis C virus genotype 1b.

Authorities are homing in on those who may have been in contact with a Liberian national who traveled to Dallas while infected with the Ebola virus.

Texas health care officials have ordered close relatives of the Dallas Ebola patient to stay home.

Tests that may help health care professionals diagnose influenza more quickly and accurately have received support from the US Department of Health and Human Services.

Officials stress that the strength of the US health care system will contain the virus.

Researchers are relying on genetics to develop new approaches for combating drug-resistant bacteria.

As the Ebola outbreak worsens, interest in therapies using recovered victims' blood grows.

The current Ebola epidemic is causing the health care system in West Africa to collapse.

Among HIV-positive patients, concurrent use of medications is associated with nonadherence to antiretroviral therapy.

Obama calls for international response to prevent "humanitarian catastrophe."

Potential for widespread chaos and eventual collapse of hardest-hit nations without ramped-up international response.

Influenza boosts the ability of pneumococci to cause middle ear and throat infections.

An experimental single-tablet regimen for treatment-naïve adults infected with HIV demonstrated non-inferiority to an FDA-approved combination pill in achieving undetectable viral load.

Officials from the US Centers for Disease Control and Prevention are urging all Americans aged 6 months and older to receive flu shots for the impending influenza season.