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A prospective cohort study of patients with drug-resistant tuberculosis (TB) found that the six-month, all-oral BPaL (bedaquiline, pretomanid, and linezolid)-based regimens recommended by the World Health Organization were safe and highly effective, providing critical data from real-world settings with a high burden of drug-resistant TB to support global guidelines recommending their use. The results were comparable to previous Phase 3 clinical trials testing the regimens. Further research is needed to test the regimens among other key populations, including children and people with severe forms of extrapulmonary TB.
A recently published analysis found that the 2023 global supply of seasonal influenza vaccines has been stable since 2019, suggesting that production capacity was sustained through the COVID-19 pandemic. Monitoring seasonal vaccine production capacity is important for estimating the capacity to manufacture vaccines in the case of an outbreak of pandemic influenza because pandemic influenza vaccines are produced primarily by the same or similar manufacturers, technology, and facilities as seasonal flu vaccines. The analysis found drastic disparities in production capacity between high-income and low- and middle-income countries and found that the majority of pandemic vaccines, in the case of a novel flu pandemic in the near future, would be egg-based. The author noted that advancing novel influenza vaccines, including mRNA vaccines, could greatly improve global production capacity and pandemic preparedness in the face of pandemic influenza, given they would be faster to produce than egg-based vaccines.
A team of researchers has engineered an improved paper-based device for collecting and transporting blood samples of HIV patients. In low-resource settings with limited clinical and laboratory facilities, paper-based devices have become one way that HIV patients can collect their blood to be shipped and analyzed in distant laboratories. The new device has wax-printed patterns that create precise channels and collection spots, ensuring that it consistently collects the same volume of blood and thereby reducing the chances of inaccurate readings. A clinical pilot found that the device more accurately measured the extent of HIV infection compared to the industry gold standard and was also better at detecting drug-resistant viral mutations, enabling physicians to make better care decisions.