From Wikipedia, the free encyclopedia. Papaya ringspot virus (PRSV) is a pathogenic plant virus in the genus Potyvirus and the virus family Potyviridae. The virus is a non-enveloped, flexous rod-shaped particle that is between 760â800 nm long and 12 nm in diameter.he other type, Type W isolates (PRSV-W), does not infect papaya. Isolates of PRSV-W do infect cucurbits such as watermelon, cucumber, and squash and were originally known as Watermelon mosaic virus 1'.'.
Coding for Chemotherapy Treatment For The Record Vol. 22 No. 13 P. 28. Chemotherapy uses powerful drugs in an attempt to eliminate cancer cells in the body. However, it also kills other fast-growing cells such as hair and blood cells, causing side effects such as hair loss and anemia.
Nausea and vomiting. Chemotherapy can cause nausea (feeling sick to your stomach) and vomiting (throwing up). Whether you have these side effects, and how much, depends on the specific drugs and dose. The right medications given before and after each dose of chemotherapy can usually prevent nausea and vomiting.