The silent alarm in the Level 4 containment lab didn't make a sound; it just pulsed a soft, rhythmic amber against the reinforced glass.
: Common agents include bacteria like Anthrax ( B. anthracis ), viruses like Ebola , or toxins like Ricin . biological terrorism
: Unlike conventional weapons, biological agents have an incubation period , meaning the attack is often only discovered days or weeks later when people start falling ill. The silent alarm in the Level 4 containment