Is there any antibiotic that is effective only against gram positive cocci but not against gram positive bacilli?

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Marianne Levon Shahsuvaryan

Possibly Cefazolin -1st Generation of Cefalosporins

Sayan Bhattacharyya

You can try a mixture of Lysostaphin and Lysozyme... Although they are not antibiotics but chemicals..

Asad Naz

Thank you every one. Cefazolin also affect gram positive bacilli. I will try Lysostaphin but I guess it has its activity against Staphylococcus only.

Any help would be much appreciated.

Phil Geis

Why do you think you're suffering contamination if you are aware of aseptic technique?

you can add Furazolidone and Mupirocin.. Have minimal activity against GPB

Thank you Sayan. I hope it will work.