http://www.panoramaacuicola.com/noticias/2012/08/02/tilapia_vaccine_launched.html MSD Animal Health, which is known as Merck Animal Health in North America, has obtained approval from Indonesian authorities to begin marketing an inactivated vaccine that aids in the protection against Streptococcus agalactiae infections in tilapia. es Waakun 2.5 http://www.rssboard.org/rss-specification