24 gram stains for meningitis, all negative.

Gram stains are negative in the first CSF samples.

Gram stain was negative. No bacteria, no pneumonia.

Nothing on gram stain. It looks like meningitis.

Gram stains are negative in the first CSF samples.

Separate off the buffy coat, then Gram stain for bacteria.

There's a gram stain test coming back soon.

Separate off the buffy coat, then Gram stain for bacteria. Great.

Bloody mucus. I'll have to do a gram stain for the sputum.

- Susie, is that the gram stain test? - It's bacterial meningitis, Dr. Isles.