The name Constanza is of Spanish origin. The meaning of Constanza is steadfast. Constanza is generally used as a girl's name. It consists of 9 letters and 3 syllables and is pronounced Con-stan-za.
The above answers are quite right. The protein capsid of naked viruses is less susceptible to environmental conditions (lipid solvents, pH, temperature...) than enveloped viruses because the envelop is made in part of phospholipids. Once the envelop is lysed, the virus loses its functional receptors and is not still able to infect susceptible cells. ...
Not all RNA viruses are retroviruses, e.g., the measles virus and flu virus are RNA viruses, but not retroviruses. There are three families of retroviruses: oncoviruses (causing cancer), lentiviruses (slow viruses, of which HIV is one), and foamy viruses or spumaviruses (about which much less is known).