They were there when the waves hit so they were more careful from the start. For diseases such as cardiovascular disease such regional statistics are sometimes still useful because the distribution of such diseases is much more evenly explained. But with the coronavirus you're going to infect each other and there's a knock-on effect in localized hotspots and then chance plays a bigger role. Cohort Study The best way to investigate the link between corona severity and air quality is to conduct a so-called cohort study.
Then you follow large groups of people who test positive to collect all sorts of data on their living conditions. At the end of the study you compare the data of the people who died with the data Latvia B2B Email List of the people who are still alive. Carnival is a super spread event. By releasing it into the public domain this doesn't mean there isn't a link between air quality and severity, emphasizes. In any case polluted air is harmful to health and has a negative impact on most respiratory diseases.
But how important this effect is compared to all other relevant factors is hard to say. The firm conclusions drawn from studies that were circulating in the media a few months ago are completely unfounded. Source et al., y/y/ From 2019's Potential role of particulate matter in transmission in northern Italy Evidence-Based Study Hypotheses Preprint Service et al. Day Air Pollution Exposure Linked to Higher Cases and Deaths New Study Dialogue et al.