Centre for Biomedical Research, University of Granada
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Professor of Immunology
Centre for Biomedical Research (CIBM) University of Granada. Researcher at CIBER of Epidemiology and Public Health (CIBERESP)
A study has analysed more than 100 environmental factors and their impact on the immune response. After studying about a thousand volunteers, its conclusions are that smoking is the factor that causes the most alterations in defences. While some changes are transient, others may remain for years after quitting. The results are published in the journal Nature.
A research team in Belgium found perfluoroalkylated and polyfluoroalkylated substances (PFAS) in drinking straws. The research, published in the journal Food Additives & Contaminants, analysed the presence of these persistent and potentially harmful compounds in 39 types of straws purchased from different shops, supermarkets or fast food chains. These substances were most prevalent in paper and bamboo straws, followed by plastic and glass straws. They were not detected in stainless steel straws.
During Pfizer's appearance before the European Parliament this week, a company executive responded to the question of whether "Pfizer's vaccine was tested to stop transmission of the virus (SARS-CoV-2) before going to market" by saying "no".
To estimate the effectiveness of two or three doses of vaccines against covid-19 infection and hospitalisation, researchers in Denmark conducted a study of all previously uninfected Danish residents aged 12 years and older. The conclusion of the research, which is published in PLOS Medicine, is that a third dose provided greater protection against infection and hospitalisation with omicron than two vaccines.
Analysis of 45 commonly used chemicals in more than 1,000 pregnant women in six countries, including Spain, finds a link between increased exposure to these compounds and non-alcoholic fatty liver disease in children, according to research published in JAMA Network Open. It is the first comprehensive study of prenatal exposure to these chemicals in combination, as they occur in real life.
Johnson & Johnson has just released preliminary data from its two-dose trial in a press release. It shows that the second dose increases the antibody response and also confirms the duration of protection among those who received one dose.