11. While histoplasmosis is the most common cause of mediastinitis, this remains a relatively rare disease. 12. Fungal pericarditis is usually due to histoplasmosis , or in immunocompromised hosts Aspergillus, Candida, and Coccidioides. 13. Histoplasmosis , caused by " Histoplasma capsulatum ", is a disease with a worldwide distribution.14. Primary infection is thought to be autolimited and almost asymptomatic as histoplasmosis or coccidioidomycosis ( valley fever ). 15. Contact with accumulated pigeon droppings can lead to serious medical conditions such as histoplasmosis , an acute respiratory disease. 16. The species " Ajellomyces capsulatus " is significant to human health as the causative agent of histoplasmosis . 17. Centers for Disease Control officials believe the disease may be histoplasmosis , a fungal infection that typically is easily treatable. 18. The hotel " will not reopen until it is confirmed that no problem related to histoplasmosis exists," 19. Starlings'droppings can contain the fungus " Histoplasma capsulatum ", the cause of histoplasmosis in humans. 20. Other diseases like Syphilis, Wegner s granulomatous, tuberculosis, histoplasmosis and paracoccidioidomycosis must be surveyed for and excluded.