biohazards

Infectious material threats

Biohazards are biological materials that pose a threat to human health or the environment—infectious agents, toxins, medical waste, or contaminated materials.

Laboratories display the distinctive biohazard symbol to warn of dangerous pathogens.

The term covers everything from used needles to weaponized anthrax: The cleanup crew wore full protective gear due to potential biohazards.

contaminants

heavy metals

Dense metallic environmental contaminants

arsenic · dioxins · PCBs · asbestos · carcinogens · mutagens · pollutants · chemicals · radioactive waste · sewage

pathogens

bacteria

Nucleus-free single-celled organisms

  • virusesSubmicroscopic infectious particles
  • fungiSpore-reproducing decomposers
  • parasitesOrganisms feeding off hosts

prions · spores · microbes · germs · pathogens · mold · infectious · contagion · transmission · vector-borne

containment

quarantine

Isolation preventing disease transmission

hazmat · biosafety · cleanroom · barrier · cordon · enclosure · segregation · restriction · checkpoint · surveillance

viral

coronavirus

Spike-ringed viral family

  • influenzaAcute viral respiratory infection
  • HIVAIDS-causing retrovirus
  • EbolaFatal hemorrhagic fever virus

Zika · hepatitis · rabies · SARS · MERS · dengue · norovirus · rotavirus · poliovirus · adenovirus

risk

exposure

State of being unprotected

immunocompromised · public health · epidemiology · biosecurity · bioterrorism · pandemic preparedness · threat assessment · precaution · protection · safety protocols

radioactive

radiation

Energy propagation through space

cesium · radon · isotopes · gamma · alpha · beta · ionizing · decay · half-life · dosimeter

toxic

toxins

Harmful biological substances

neurotoxic · cytotoxic · carcinogenic · mutagenic · teratogenic · noxious · pesticides · chemicals · pollutants · irritants

classification

regulated

Made to follow rules

Categories
Opposites
safety status

biohazardsbiosafety

Protection from biological hazards

sterile conditions

biological effect

biohazardstherapeutics

Study of healing interventions

medicines · vaccines · probiotics · beneficial microbes · antibiotics

hazard type

biohazardschemical hazards

Dangers from harmful substances

chemical spills · electrical hazards · nuclear waste · toxic chemicals · radioactive materials

Phrases
Family

biohazard, biohazardous

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated PG