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Neisseria meningitidis isolates with moderate susceptibility to penicillin

A Ariza1, M Y Rohani

  • 1Department of Pathology, Kuala Lumpur Hospital.

The Medical Journal of Malaysia
|March 23, 2005
PubMed

Insights

Penicillin-resistant Neisseria meningitidis, a cause of meningitis, is a growing concern. This study reports the first cases of decreased penicillin susceptibility in Malaysian clinical isolates, highlighting a potential emerging public health issue.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Neisseria meningitidis is a primary bacterial cause of meningitis globally.
  • While historically susceptible to penicillin, reports of reduced susceptibility are emerging worldwide.
  • No previous reports of penicillin resistance in Neisseria meningitidis exist in Malaysia.

Purpose of the Study:

  • To report the first documented instances of decreased penicillin susceptibility in Neisseria meningitidis clinical isolates from Malaysia.
  • To characterize the antimicrobial susceptibility profile of these isolates.

Main Methods:

  • Agar dilution method was employed to determine Minimum Inhibitory Concentrations (MICs).
  • Two clinical isolates of Neisseria meningitidis were analyzed.

Main Results:

  • Two clinical isolates exhibited decreased susceptibility to penicillin.
  • Minimum Inhibitory Concentrations (MICs) indicated a reduction in susceptibility compared to historical data.

Conclusions:

  • This study documents the emergence of decreased penicillin susceptibility in Neisseria meningitidis in Malaysia.
  • These findings warrant further surveillance and investigation into the implications for meningitis treatment and prevention in the region.

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