A large team of researchers from the World Health Organization (WHO) and many other institutions performed a new analysis of serologic studies from 19 countries in order to estimate the infection rate of the 2009 H1N1 influenza during the first year of the pandemic. The study, published in Influenza and Other Respiratory Viruses, showed that about 24% of the population were infected with the H1N1 virus during the first wave of the pandemic. Of these infected, approximately 0.02% died.These results are slightly higher than the official estimates made by the US Centers for Disease Control and Prevention (CDC) in the period immediately following the outbreak of the virus, and confirm the age-related distribution of H1N1 incidence, with the children being the most affected when compared to the over 65. One of the possible limitations of the study, as highlighted by the authors themselves, is that the vaccine might had little impact on their results, due to conflicting results and low vaccine coverage in most countries.
An evaluation of 2009 pandemic infection rate
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Europe votes on the new air quality directive
The European Parliament's vote (and subsequently the Council of Europe's) on the new European Directive on air quality is expected for September 13. This directive updates the allowed atmospheric pollutant limits, bringing them closer to those established by the WHO in 2021. Resistance to the new objectives, mainly coming from the industrial world and established economic interests in certain regions, makes the outcome of the vote uncertain. However, there are no serious scientific or political reasons to oppose or attempt to dilute the more ambitious limits proposed by the new directive.
Image credits: JC Gellidon/Unsplash
The new European Directive on air quality, currently under discussion in the European Parliament, updates the concentration limits of major air pollutants, bringing them closer to those set by the new guidelines of the World Health Organization (2021). The outcome of the vote, scheduled for September 13, is uncertain.