Why is CSF cloudy in haemophilus influenzae?
CSF is cloudy when there are white cells present and of course white cells do not belong in CSF. This indicates infection. Protein can also cause cloudiness. H. influenza is not an exclusive cause of cloudy CSF. Tumor, abscess, stroke or a demyelinating disease can cause it. Streptococcus pneumoniae, Neisseria meningitidis and Listeria monocytogenes are other causes.