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Protection of 4 doses of COVID vaccine against BA.5 infection among COVID-naïve participants was 16.1%, while it was 89.5% and 94.3% among those previously infected with BA.1 and BA.2, respectively.
The latest issue of Eurosurveillance includes 3 reports on antibiotic-resistant infections in Europe.
Fever and cough were more common with the Delta and Omicron variants, but rates of hospitalization and ICU admission stayed the same over time.
US legislators vote to declassify info about SARS-CoV-2 origins, the Cochrane Review issues a clarification, and XBB.1.5 now makes up nearly 90% of US cases.
People with chronic hepatitis B infection are at increased risk for liver cancer and cirrhosis and are 70% to 85% more likely to die prematurely.
Patients who expected antibiotics for a respiratory infection were more likely to receive them, even during COVID-19.
Chad, the Democratic Republic of the Congo, Madagascar, and Nigeria all have new cases, and the GPEI confirms the earlier-reported case in Israel.
A roundup of international news on the COVID-19 pandemic.
A collaboration between NGOs and a diagnostic test maker will provide rapid molecular TB tests to high-burden countries at a reduced price.
The US reports 6 more H5N1 infections in mammals, Chile confirms the strain in a sea otter, and the US and UK weigh vaccinating poultry.
For the first time, chronic wasting disease has been detected in white-tailed deer in Manitoba—previous detections were in mule deer.
More than 230 organizations representing healthcare providers, public health professionals, and others have sent a letter to Congress urging for steps to address antimicrobial resistance.
After peaking in late 2022, global flu activity continues to decline, with greater proportion of the H1N1 and influenza B viruses detected.
The US is finalizing a plan to ease screening of travelers from China, the World Bank is short on pandemic funds, and the UK announces a spring booster plan.
Long-COVID patients were more likely to have reflux, peptic ulcers, pancreatitis, dyspepsia, gastritis, irritable bowel syndrome, and other GI conditions.
A study suggests a multidrug-resistant bacteria outbreak that sickened 4 patients and killed 3 was likely linked to a commercial water purification system.
An unpublished study involving nearly 150,000 COVID-19 survivors who had mild infections in Salt Lake City suggests that many still had chest pain 6 months and 1 year later.
About 63% were prescribed empiric antibiotics, but only 7% had bacterial co-infection, and only 3% had a respiratory bacterial co-infection.
In Salmonella bacteria isolated from humans and food-producing animals, resistance to ampicillin, sulfonamides, and tetracyclines remained at high levels.
Screening patients for Clostridioides difficile colonization was not useful for preventing C difficile infection, Dutch researchers report.
