yCVA is a credit hybrid option on the contingent exposure of a derivative contract or a portfolio of. derivative contracts. It is a call option on the MTM of these derivative contracts with an counterparty that. can be exercised only upon a credit event of that counterparty.
Viruses are found on or in just about every material and environment on Earth from soil to water to air. They're basically found anywhere there are cells to infect.Viruses have evolved to infect every form of life, from animal to plant and from fungi to bacteria.However, viruses tend to be somewhat picky about what type of cells they infect.hey're basically found anywhere there are cells to infect. Viruses have evolved to infect every form of life, from animal to plant and from fungi to bacteria. However, viruses tend to be somewhat picky about what type of cells they infect.
1 Most viruses infect specific host cells ie are host specific. 2  Host specificity is due to: 3  specific attachment sites on the host cells called receptors. 4  Receptor sites for bacteriophage are found in bacterial cell walls or fimbrae or flagella.5  Animal cell membranes contain receptors for animal viruses. 20nm to 14000nm in size. 2  Most are smaller than bacteria (eg Adeno virus). 3  Vaccinia virus is the same size as the small bacteria like Mycoplasma, Rickettsia & Chlamydia. 4  Contain either DNA or RNA (never both) surrounded by a protein coat (capsid) and sometimes covered by an envelope.