Definition of casual for Students. 1  1 : happening unexpectedly or by chance : not planned or foreseen a casual meeting. 2  2 : occurring without regularity : occasional casual visits. 3  3 : showing or feeling little concern : nonchalant This is awful!  4 : meant for informal use Wear casual clothing for the tour.
Fungemia or fungaemia is the presence of fungi or yeasts in the blood . The most common type, also known as candidemia, candedemia, or systemic candidiasis , is caused by Candida species, but infections by other fungi, including Saccharomyces , Aspergillus and Cryptococcus , are also called fungemia.
Cause. Shingles is caused by the varicella zoster virus (VZV), the same virus that causes chickenpox. After a person recovers from chickenpox, the virus stays dormant (inactive) in the body. For reasons that are not fully known, the virus can reactivate years later, causing shingles.hingles is caused by the varicella zoster virus (VZV), the same virus that causes chickenpox. After a person recovers from chickenpox, the virus stays dormant (inactive) in the body.