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Related Concept Videos

Reservoir of Infection01:30

Reservoir of Infection

Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
Inhalation Anthrax01:25

Inhalation Anthrax

Anthrax is a zoonotic disease caused by Bacillus anthracis, a Gram-positive, spore-forming bacterium. It primarily affects herbivorous animals but can be transmitted to humans through skin contact, ingestion, or inhalation of spores.Cutaneous anthrax, the most common form, typically results from direct contact with bacterial spores through skin abrasions and is generally less severe. Gastrointestinal anthrax results from eating undercooked or contaminated meat. It affects the mouth, throat, or...
Plague01:24

Plague

Plague is a highly virulent zoonotic disease caused by Yersinia pestis, a Gram-negative, facultatively anaerobic coccobacillus. This pathogen primarily circulates among rodent populations and is transmitted to humans through the bite of infected fleas. Additional transmission routes include direct contact with infected animal tissue or inhalation of respiratory droplets from individuals with pneumonic plague. These multiple transmission pathways highlight the bacterium’s potential for rapid...
Bacterial Phylum Spirochaetes01:30

Bacterial Phylum Spirochaetes

Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased by a...
Rabies01:28

Rabies

Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...
Viral Recombination00:57

Viral Recombination

Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.

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Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 3. Aerobiology
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Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 3. Aerobiology

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Zoonoses likely to be used in bioterrorism.

C Patrick Ryan1

  • 1Veterinary Public Health and Rabies Control, Disease Control Programs, Los Angeles County Department of Public Health, 7601 E. Imperial Hwy., Bldg. 700, Ste. 94A, Downey, CA 90242, USA. pryan@ph.lacounty.gov

Public Health Reports (Washington, D.C. : 1974)
|November 15, 2008
PubMed
Summary
This summary is machine-generated.

Bioterrorism involves releasing pathogens to cause harm, with Category A agents posing the highest risk. Close collaboration between medical and veterinary fields is crucial for preparedness against zoonotic diseases used in bioterrorism.

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'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens
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'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens

Published on: July 8, 2011

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'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens
11:31

'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens

Published on: July 8, 2011

Area of Science:

  • Microbiology
  • Epidemiology
  • Public Health

Background:

  • Bioterrorism is the intentional release of disease-causing agents.
  • Minimal expertise is required to develop and deploy biological weapons.
  • Biological warfare has historically influenced military outcomes.

Observation:

  • Many potential bioterrorism pathogens are zoonotic (infecting animals and humans).
  • The Centers for Disease Control and Prevention categorizes high-priority agents as Category A.
  • Smallpox is the only non-zoonotic Category A agent, eradicated globally.

Findings:

  • A limited number of pathogens are practical for terrorist use due to ease of preparation and dispersal.
  • Zoonotic diseases represent the majority of infectious diseases with bioterrorism potential.
  • Category A agents include pathogens like anthrax, botulinum toxin, plague, smallpox, tularemia, and viral hemorrhagic fevers.

Implications:

  • Enhanced surveillance and response strategies are needed, integrating human and animal health sectors.
  • Interdisciplinary collaboration between medical and veterinary professionals is vital for effective bioterrorism preparedness.
  • Research into novel diagnostics, therapeutics, and vaccines is essential to counter emerging biological threats.