Bioterrorism is terrorism involving the intentional release or dissemination of biological agents. These agents include bacteria, viruses, insects, fungi, and/or toxins, and may be in a naturally occurring or a human-modified form, in much the same way as in biological warfare. Further, modern agribusiness is vulnerable to anti-agricultural attacks by terrorists, and such attacks can seriously damage economy as well as consumer confidence. The latter destructive activity is called agrobioterrorism and is a subtype of agro-terrorism.
Source: Wikipedia
Whilst preparedness for a bioterrorist attack is improved in certain places, notably the USA, most cities do not have even basic responses, such as round-the-clock call for public health and emergency workers to respond immediately to reports or questions of suspicious cases in emergency rooms or elsewhere; interconnection of hospitals, public health systems and laboratories to facilitate rapid detection and management; appropriate training of detection staff; emergency medical committees for for conjoint planning at the local and regional levels; capabilities for mass vaccination or distribution of antibiotics or respirators within a few days.