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Masks that are not washed or disinfected are often a source of bacteria. That is the main conclusion that Marisa García Alonso , pharmacist and clinical analyst, has recently come to when performing an analysis with different types of used masks. If they are not cared for or changed frequently, it is most likely that all kinds of bacteria will appear: staphylococcus , streptococcus , neiserias , bacillus ...

The analysis carried out by this pharmaceutical company, known on social networks for its informative work, has consisted of 'cultivating' in small Petri dishes the microorganisms from the reused masks . In his study you can see how he uses the 'blood agar', characteristic for their red color, to deposit the imprints or tissue remains of each mask used, and the result is illuminating : in all of them, even minimally, some type of bacteria.

See this post on Instagram

The truth is that not all are "pathogens" , as reported by Marisa García, "but they could become opportunistic pathogens if they are greatly increased because they are growing in abundance in wet masks with our breath." The ultimate goal with this outreach exercise is not, in that sense, "for someone to end up not wearing the masks," but rather "for us to take better care of our masks, or to change them more often."

The process has been recorded and posted on his instagram account. The video is already a success: it has more than 70 thousand reproductions and nearly 500 comments with an entire community exposing impressions and doubts.

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