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Cryptococcus (Cryptococcal meningitis) - it is thought to be acquired through inhalation of soil contaminated with bird droppings. C. neoformans is the most common pathogen to cause fungal meningitis. Aspergillus - Aspergillus infections account for 5% of fungal infections involving the central nervous system.
Although meningitis is a notifiable disease in many countries, the exact incidence rate is unknown. [22] In 2013 meningitis resulted in 303,000 deaths – down from 464,000 deaths in 1990. [86] In 2010 it was estimated that meningitis resulted in 420,000 deaths, [87] excluding cryptococcal meningitis. [42]
Cryptococcal meningitis: Fungal Co-infection with HIV [40–60]% 6 month mortality is >=60% with fluconazole-based therapy and 40% with amphotericin-based therapy in research studies in low and middle income countries. [27] Anthrax, gastrointestinal: Bacterial Unvaccinated and untreated > 50% [7]: 27 Tetanus, Generalized Bacterial
Cryptococcosis is often fatal, even if treated. It is estimated that the three-month case-fatality rate is 9% in high-income regions, 55% in low/middle-income regions, and 70% in sub-Saharan Africa. As of 2009 there were globally approximately 958,000 annual cases and 625,000 deaths within three months after infection. [29]
Meningitis and meningococcemia are major causes of illness, death, and disability in both developed and under-developed countries. There are approximately 2,600 cases of bacterial meningitis per year in the United States, and on average 333,000 cases in developing countries. The case fatality rate ranges between 10 and 20 percent. [3]
Most forms of aseptic meningitis are viral in origin, though neoplastic and Lyme disease meningitis are also aseptic. California encephalitis virus; Central nervous system viral disease; Cytomegalovirus encephalitis; SARS-CoV-2; Eastern equine encephalitis; Enterovirus encephalitis; Epstein Barr Virus encephalitis; Herpes simplex encephalitis ...
Infection begins in the lungs, and from there the fungus can disseminate to the brain and other body parts via macrophages. An infection of the brain caused by C. neoformans is referred to as cryptococcal meningitis, which is most often fatal when left untreated. [5] [31] Cryptococcal meningitis causes more than 180,000 deaths annually. [32]
The mortality rate in cryptococcal meningitis is 25%. [3] Increased intracranial pressure, co-infection with tuberculosis or cytomegalovirus, elevated neutrophil counts, high fungal burden and hyponatremia is associated with a poor prognosis and increased risk of death in those with cryptococcal meningitis. [5]