Some theories claim that Covid-19 was created in a laboratory in Wuhan, China, before leaking out into the general population. But a study in the journal Science has turned up more evidence confirming the wet market in the city as the source instead. Scientists went over disease tracing activity in Wuhan in December, 2019… and discovered a key error by Chinese health officials in the date the first Covid patient got sick. Correcting the dates makes exposure to Covid in the market much more likely as the source of the disease.
If you have a lot of fast food restaurants in your neighborhood… you have a higher risk of developing type 2 diabetes. But if you have a lot of supermarkets… your risk is lower. The study in the journal JAMA Network Open defines your “neighborhood” as within a one mile walk in big cities, a six mile drive in the suburbs, and a 10-mile drive in rural areas. If fast food or supermarkets are within that range, the study shows we’re likely to be customers.
And finally… if transmission of Covid is more likely inside than outside, does that mean the wind is protecting you outdoors? The answer, apparently, is yes. A study in the journal BMC Infectious Diseases finds that when you’re outside and the wind is less than about five miles an hour… the chances of contracting Covid from someone infected nearby is about 45 percent higher.