vaccines

vaccines

vaccines

Reaction: Study suggests infants born by caesarean section respond worse to some vaccines because of changes in the microbiome

A study has found a link between caesarean delivery and changes in the microbiome, as well as a reduced response to pneumococcal and meningococcal vaccines in children. The results are published in the journal Nature Communications.

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Reaction to study looking at thrombus risk after vaccination with AstraZeneca and Janssen

A study published in the BMJ looks at the risk of thromboembolic events associated with different covid-19 vaccines, both adenovirus- and mRNA-based. Its results are based on data collected from more than 10 million adults in France, Germany, the Netherlands, Spain, the UK and the US who received at least one dose of a covid-19 vaccine from December 2020 to mid-2021.

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Reactions: EMA gives green light to new dengue vaccine

The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended granting marketing authorisation for the tetravalent dengue vaccine (live, attenuated) Takeda. The vaccine is intended to prevent disease caused by dengue virus serotypes 1, 2, 3 and 4 in people aged four years and older. Although an approved vaccine already exists, according to the EMA, this quadrivalent vaccine shows increased protection in children and people over 45 years of age.

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Why the United States and Europe have approved different vaccines against Omicron

Regulatory agencies in the US and Europe - the FDA and the EMA - have licensed vaccination against Omicron focusing on different variants and sub-variants. Different procedures and studies in humans and animals have informed the agencies' decisions. Experts hope that these new doses will provide sufficient protection this autumn and winter to mitigate the impact of the next wave.