TraitMech

TraitMech › ECOLOGY

biosafety level 3

METPO:1001104 · CLASS · REVIEWED

A biosafety level that can cause serious or potentially lethal disease through inhalation or other routes, requiring specialized containment facilities with controlled access, directional airflow, and strict safety protocols.

BSL-3 serious-hazard classification

DOI-backed graph linking serious/lethal disease potential and aerosol transmission risk to BSL-3 classification.

BSL-3 serious-hazard classification Interactive directed graph showing evidence-backed causal relationships for biosafety level 3.

Edge evidence

  • serious pathogen hazard produces biosafety level 3 METPO:2000202

    Serious pathogen hazard with aerosol risk yields BSL-3 classification.

    • DOI:10.1146/annurev.micro.62.081307.162938 virulence factors Supports high virulence with aerosol transmissibility as the basis of BSL-3 classification.
  • biosafety level 3 is a biosafety level rdfs:subClassOf

    BSL-3 is a member of the biosafety-level classification.

    • DOI:10.1146/annurev.micro.62.081307.162938 virulence factors Supports BSL-3 as a member of the biosafety-level classification.
  • aerosol transmission risk necessitates biosafety level 3

    Risk of severe/lethal disease via aerosol route necessitates BSL-3 containment.

    • DOI:10.64483/jmph-115 "can cause severe or lethal disease by aerosol route... requires respiratory protection"
  • biosafety level 3 implemented by negative pressure directional airflow

    BSL-3 containment is implemented by negative-pressure directional airflow.

    • DOI:10.64483/jmph-115 "negative pressure (2.5 to 10 Pascals) with inward airflow"
  • biosafety level 3 implemented by HEPA filtration of exhaust air

    BSL-3 containment is implemented by HEPA filtration of exhaust air.

    • DOI:10.64483/jmph-115 "HEPA-filtered exhaust (eliminating 99.97% of particles >=0.3 um)"
  • biosafety level 3 verified by boundary integrity testing

    BSL-3 containment integrity is verified by quantitative boundary integrity testing.

    • DOI:10.1089/apb.2023.0017 "quantitative leakage testing to verify it meets minimum requirements"
  • boundary integrity testing utilizes pressure decay testing

    Boundary integrity testing utilizes pressure decay testing under steady negative pressure.

    • DOI:10.1089/apb.2023.0017 "maintain a steady negative pressure during leakage testing"
  • ISO 35001 biorisk management system mitigates laboratory-acquired infection METPO:2007407

    ISO 35001 biorisk management systems mitigate laboratory-acquired infections.

    • DOI:10.26686/nzjhsp.v1i2.9540 "safety management systems generally improve health and safety performance"

Knowledge gaps & discussions (1)

KNOWLEDGE_GAP OPEN Knowledge gap for biosafety level 3: Additionally, it identifies ongoing challenges and critical knowledge gaps for future research.

Surfaced by the Europe PMC literature gap-signal scan (categories: explicit_gap, future_work, limitations_barriers, unclear_unknown). Curator review required: set attaches_to, refine the prompt, and weigh the cited evidence.

4 evidence item(s)
NO_EVIDENCE PMID:41494000 Additionally, it identifies ongoing challenges and critical knowledge gaps for future research. Gap-signal sentence (explicit_gap, future_work, limitations_barriers) from the cited abstract.
NO_EVIDENCE PMID:40514544 Although T cells are essential for immunity to TB, the mechanisms that provide protective immunity are poorly understood. Gap-signal sentence (unclear_unknown) from the cited abstract.
NO_EVIDENCE PMID:41552424 In the field of microbiological diagnosis, HTS provides a complementary or alternative approach to traditional diagnostic tests, particularly in cases with non-specific symptoms or when the etiology is unknown. Gap-signal sentence (unclear_unknown) from the cited abstract.
NO_EVIDENCE PMID:41917383 While its virulence genes critically regulate intracellular survival and replication, the molecular mechanisms underlying pathogenesis remain elusive. Gap-signal sentence (unclear_unknown) from the cited abstract.

Provenance

Source
METPO (2025-11-25)
Author
Jed Dongjin Kim-Ozaeta
Definition source
DOI:10.1146/annurev.micro.62.081307.162938

Parent traits (1)

Synonyms (2)

  • 3 RELATED_SYNONYM · metpo.owl
  • 3** RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1001104 [+22.599, -24.248, -48.083, +0.798, …]

512-dim DeepWalkSkipGramEnsmallen embedding from kg-microbe (2026-04-25).

Nearest neighbors in embedding space

Top-8 cosine-similar METPO traits from the 2026-04-25 deepwalk (512-D).

Curation history

  1. · SEEDED_FROM_METPO · seed_from_metpo

    imported from data/raw/metpo.owl (CLASS)

  2. · CURATED_CAUSAL_GRAPH · claude

    Added DOI-backed causal graph linking serious pathogen hazard with aerosol transmission to BSL-3 classification.

  3. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000202×1, rdfs:subClassOf×1).

  4. · ENRICH_CAUSAL_GRAPH · claude

    Added 6 evidence-backed generic edges (7 new nodes) from the deep-research report.

  5. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2007407×1).