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Identifying the cause of an infectious disease is time-consuming and not always easy. So a company called Karius has developed a blood test that analyzes cell-free DNA to identify more than a thousand pathogens.
You don't need to purchase an air purifier for your house. You have a built-in air purifier called the respiratory system.
The authors had a clear strategy in mind: (1) Do a study on a common household object; (2) Produce boring data that doesn't surprise any microbiologist; (3) Write a provocative, fear-mongering headline; (4) Market it to a gullible, clickbait-hungry press, exhibiting no critical thinking; and (5) Watch the grant dollars roll in.