Last August, we wrote about Marissa, a 19-month-old baby girl living in Annandale, Virginia, who was diagnosed at two months with a rare pediatric condition called Infantile Spasms (IS). IS is a type of epilepsy experienced in infancy that causes clusters of seizures and can lead to development problems. Marissa’s father, Mike, who spearheaded a global online effort for IS awareness, recently e-mailed us with the sad news that Marissa has “taken a turn…