The authors present a work on the problem of influenza, studied from serologically. Was conducted in the year 1959-60 against a serological survey of influenza virus, in 1276 persons of both sexes, whose ages ranged from one to 99 years. For the proper medical problems arising from influenza, consider the serious socio-economic conditions that are caused by epidemics of these viruses; This makes the study of this virus is of global concern and therefore the importance and objectives that will lead to making this work is pointed out.

In this paper, the dispersion of a precursor of the silver nanoparticles of silver carboxylate a polyether polyol triol, followed by reduction of sílver polymerization via ultrasound and polyether polyol triol with isophorone diisocyanate and 1 ,4-butanediol as chain extender, under appropriate temperature and agitation, the reaclion is catalyzed by an organometallic compound dibutyl tin laurate and activated by the addition of deionized water. The solid formed polyurethane has in its structure dispersed nanosilver atoms, acquiring bactericida! properties and bright gold.

In this paper, the dispersion of a precursor of the silver nanoparticles of silver carboxylate a polyether polyol triol, followed by reduction of sílver polymerization via ultrasound and polyether polyol triol with isophorone diisocyanate and 1 ,4-butanediol as chain extender, under appropriate temperature and agitation, the reaclion is catalyzed by an organometallic compound dibutyl tin laurate and activated by the addition of deionized water. The solid formed polyurethane has in its structure dispersed nanosilver atoms, acquiring bactericida! properties and bright gold.