diff --git a/external/lab-good-practice/mycoplasma/mycoplasma.md b/external/lab-good-practice/mycoplasma/mycoplasma.md
index bdd562f8fba04146cb27c28a01f6b3b3e17017c0..596bc5f4f705afaf7e36d880de8d21bca6e0e93d 100644
--- a/external/lab-good-practice/mycoplasma/mycoplasma.md
+++ b/external/lab-good-practice/mycoplasma/mycoplasma.md
@@ -31,7 +31,7 @@ Due to these reasons, mycoplasma is one of the most serious and devastating cult
 The most common cause for mycoplasma contamination is the presence of another infected cell line in the laboratory. Sharing the same hood can also increase the spreading of the contamination between cell cultures.
 
 Another important cause is the cell culturist. Talking and sneezing can generate significant amounts of aerosols that have been shown to contain mycoplasma. Additionally, dirty lab coats can be a source of contamination when a dust-laden sleeve is put into a laminar flow hood and dust particles fall into cultures. 
-However, good aseptic techniques and training will significantly reduce the risk of contamination via this route.
+However, good aseptic techniques and training do significantly reduce the risk of contamination via this route.
 
 
 ## Mycoplasma detection