People on a meatless diet are less likely to get Covid-19: study

The following is a summary of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for Covid-19, the disease caused by the virus.

Food-related severity of Covid-19

People on a meatless diet were less likely to contract moderate to severe Covid-19, according to a six-country study published Monday in BMJ Nutrition, Prevention & Health. Plant-based diets were linked to a 73% reduced risk of serious illness, researchers found in a survey of 2,884 healthcare providers who have treated Covid-19 patients. By combining those who follow a plant-based diet and people who also eat fish but not meat, the researchers found 59% less risk of serious illness. The study cannot prove that specific diets protected against severe Covid-19, and the diet did not appear to reduce the risk of infection. But plant-based diets are high in nutrients, vitamins, and minerals that are important for a healthy immune system, the researchers noted, and fish provide vitamin D and omega-3 fatty acids, which have anti-inflammatory properties. -inflammatory. Healthy eating, however, has been problematic during the pandemic, according to two presentations this week at a virtual meeting of the American Society for Nutrition. Consumption of healthy foods such as vegetables and whole grains has declined, according to researchers who compared the diets of more than 2,000 Americans before and during the pandemic. In a separate study, researchers who collected dietary data in June 2020 for 3,916 American adults found that many had increased their consumption of unhealthy snacks, desserts and sugary drinks during the pandemic. “Individuals may need help to avoid making these dietary changes permanent,” said Dr. Sohyun Park of the US Centers for Disease Control and Prevention, co-author of this latest study.

No serious issues with AstraZeneca vaccine in Scotland

A side effects study of AstraZeneca’s COVID-19 vaccine in Scotland found only an association with a largely harmless bleeding condition and no link to the potentially fatal venous clotting in the brain, known as CVST , which has raised concerns in Europe and led to breaks in its use. Researchers who followed 5.4 million people in Scotland found about one more case of idiopathic thrombocytopenic purpura (ITP) per 100,000 people after the first injection of AstraZeneca. ITP is a treatable disease of low platelet count and caused no deaths among the 1.7 million vaccine recipients in the study, the authors reported Wednesday in Nature Medicine. Due to the paucity of CVST, the Scottish study may have been too small to draw any conclusions, co-author Aziz Sheikh of the University of Edinburgh told a press conference. “The overall message is just the paucity of these results,” Sheikh said. “These are reassuring data.”

Aspirin does not help hospital patients Covid-19 patients

Aspirin did not improve survival or reduce disease severity in a study of nearly 15,000 hospital patients with Covid-19. The researchers were hoping that because aspirin helps reduce blood clots in other illnesses, it might be helpful in Covid-19 patients who are at higher risk for bleeding problems. Patients randomly assigned to receive 150 milligrams of aspirin once a day had fewer blood clots, but no lower risk of becoming sicker and requiring mechanical ventilation or a better chance of being alive after 28 days. And they had a higher risk of major bleeding complications, a problem not uncommon with aspirin treatment. They had a slightly better chance of being released from the hospital alive, researchers reported on medRxiv Tuesday ahead of the peer review. But “that does not seem sufficient to justify its widespread use for patients hospitalized with Covid-19,” said Peter Horby of the University of Oxford, co-chief investigator of the trial.

Covid-19 control policies still needed in hot weather

With no lockdowns and social distancing, weather and overcrowding have the biggest impact on the spread of Covid-19, according to a new study. But even though virus transmission tends to be a bit lower in warmer conditions, summer weather “cannot be considered a substitute for mitigation policies” because population density matters more than temperature. , according to the Imperial College London report published Wednesday in PNAS. Warmer regions shouldn’t expect to relax mobility restrictions before cooler regions, especially because “warmer regions tend to have higher population densities – for example, the population of Florida is denser than Minnesota, “co-author Will Pearse said in a statement. Closures have stronger effects than temperature or population density, his team reported. Because changes in temperature have a much weaker effect on transmission than policy interventions, “until people are vaccinated, governments should not abandon policies such as lockdowns and social distancing simply because” a seasonal change means the weather is getting warmer, ”said co-author Dr Tom Smith. . The study also suggests “that lower temperatures in the fall and winter may lead to easier spread of the virus in the absence of policy interventions or behavior changes.”

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This story was posted from an agency feed with no text editing. Only the title has been changed.

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