Plasmodium falciparum is a protozoan parasite that causes an infectious disease known as malaria. P. falciparum is the most severe strain of the malaria species correlated with almost every malarial death. [1] The other 3 species that cause malaria include: P. vivax, P. ovale, and P. malariae.
To set the value of a Boolean attribute, such as disabled, you can specify any value. An empty string or the name of the attribute are recommended values. All that matters is that if the attribute is present at all, regardless of its actual value, its value is considered to be true.
The Value Property. The Value property of the option button control indicates whether the option button is selected. When selected, the value is changed to True. You can select an option button in code by setting its Value property. For example: To make an option button the default within an option button group, set the Value property at design time using the Properties window or at run time in code, as shown above.