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Influenza Vaccine. Vaccine efficacy or vaccine effectiveness is the percentage reduction of disease cases in a vaccinated group of people compared to an unvaccinated group.For example, a vaccine efficacy or effectiveness of 80% indicates an 80% decrease in the number of disease cases among a group of vaccinated people compared to a group in which nobody was vaccinated.
Number needed to vaccinate (NNV) is a metric used in the evaluation of vaccines, [1] [2] [3] and in the determination of vaccination policy. It is defined as the average number of patients that must be vaccinated to prevent one case of disease. It is a specific application of the number needed to treat metric (NNT).
Vaccines are complex mixtures of biological compounds, and unlike the case for prescription drugs, there are no true generic vaccines. The vaccine produced by a new facility must undergo complete clinical testing for safety and efficacy by the manufacturer. For most vaccines, specific processes in technology are patented.
The good news is that the conflicting data—and strong immune responses you likely get from getting vaccinated regardless of the arm—gives you the power to decide which sleeve to roll up.
An analysis of 2024 Google search data revealed the top health questions asked by Americans. A registered nurse provides answers to the seven most common inquiries.
Respiratory syncytial virus, or RSV, kills 10,000 to 13,000 older adults annually. Here’s why Dr. Leana Wen recommends people get the new RSV vaccines available for older people, pregnant people ...
The risk of UTI recurrence with Uromune treatment has been found to increase with time, suggesting that the vaccine gradually wears off. [5] [6] In a 2022 long-term prospective observational study with 1,003 patients, Uromune reduced the number of UTIs to 0–2 in 95.5% at 3 months, in 86.8% at 6 months, and in 54.7% at 12 months. [7]
“Physicians and patients should also take note that female physicians provide the same quality of care as their male colleagues, and as this study suggests, the care might even be better for ...