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The composition of gut bacteria appears to be associated with how much latent HIV remains in the blood of people receiving antiretroviral therapy. This is shown in a new study from Karolinska ...

Mouths are filthy, harboring the second largest microbiome of the human body. Some bacteria can help break down food, among other responsibilities; other bacteria can travel into the mouth on food, ...

Gram-positive bacteria show blue or purple after Gram-staining in a laboratory test. They have thick cell walls. Gram-negative bacteria show pink or red on staining and have thin walls. They release ...