Meningococcal disease in healthcare workers

Autopsy Biosafety: Recommendations for Prevention of Meningococcal Disease

Introduction

As invasive meningococcal disease progresses rapidly, often affects youth, and has a fairly high mortality rate, such cases are likely to fall under medical examiner/coroner (ME/C) jurisdiction. Morgue personnel may be at risk of contracting secondary meningococcal disease. We review the current scientific literature regarding Neisseria meningitidis infection and provide recommendations for the prevention of meningococcal disease at autopsy.

Methods

A PubMed search utilizing applicable medical subject heading terms was performed retrieving articles for review from the preceding two decades. Pertinent current guidelines from multiple national organizations were also retrieved.

Results

Invasive meningococcal disease is transmitted by direct contact with large respiratory droplets or oral secretions. While a surgical mask would normally provide adequate protection from large droplet spread, it does not prevent inhalation of smaller aerosolized particles such as those generated at autopsy. Prosectors are advised to routinely wear N-95 respirator masks or powered respirator hoods. All published cases of secondary meningococcal disease transmission to healthcare workers invariably arose in scenarios in which face masks/respirators were not employed; none of these cases involved meningococcal disease transmission to ME/C or other morgue staff.

Discussion

In the event that no mask-or inadequate coverage such as a surgical mask-is employed during autopsy of a decedent suspected/confirmed to have invasive meningococcal disease, antibiotic prophylaxis is advisable. Assuming appropriate personal protective equipment is utilized, chemoprophylaxis is unnecessary. Routine meningococcal vaccination is not recommended, except for ME/C with specified immunocompromising conditions or traveling to hyperendemic/endemic meningococcal regions. Acad Forensic Pathol. 2018 8(2): 328-339.

Diagnosing meningococcemia as a cause of sepsis

OBJECTIVE

In 2004, a consensus meeting of critical care and infectious disease experts was organized to review and make recommendations on current definitions of infections, sepsis, and organ failure for neonates and children and for the predisposing conditions leading to these diseases. Among the infections leading to sepsis, meningococcemia is so distinguishable that a separate article on its diagnosis and management was thought to be warranted.

DESIGN AND METHODS

The process included a modified Delphi method, a consensus conference, subsequent smaller meetings of subgroups and key individuals, and electronic-based discussion among subgroups. A systematic review of the literature was undertaken.

CONCLUSIONS

Early recognition and treatment of likely meningococcal sepsis has led to decreased mortality. Since the start of vaccination against serogroup C, the prevalence of this disease has decreased. Not only the possible presence of a meningococcal sepsis is important, but also the assessment of the shock state and the severity of disease and the possible presence of meningoencephalitis. There are also a number of genetic predispositions determining the severity of disease. The only three randomized trials in this disease have led to the conclusion that mortality is not a stable end point. Improvement in organ function, morbidity (including amputations), and functional outcome are better outcome measures.