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Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Asthma cases in Americans are about 75% higher today than they were in 1980.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.