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Related Concept Videos

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...
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,...
Toxoplasmosis01:28

Toxoplasmosis

Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
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.
Infectious Diseases and Their Occurrence01:28

Infectious Diseases and Their Occurrence

Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
Transmission of Pathogens01:24

Transmission of Pathogens

Pathogens spread from their reservoirs to susceptible hosts through three main routes: contact transmission, vehicle transmission, and vector transmission. Each route involves distinct mechanisms of transfer.Contact TransmissionThis category includes direct contact, indirect contact, and droplet transmission:Direct contact involves immediate physical interaction between individuals—such as a handshake—which can spread pathogens like Streptococcus pyogenes, the bacterium responsible for...

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Related Experiment Video

Updated: Jun 3, 2026

Whole Genome Sequencing for Rapid Characterization of Rabies Virus Using Nanopore Technology
10:26

Whole Genome Sequencing for Rapid Characterization of Rabies Virus Using Nanopore Technology

Published on: August 18, 2023

[Zoonotic infectious diseases].

José M Eiros Bouza1, José A Oteo Revuelta

  • 1Área de Microbiología, Facultad de Medicina y Hospital Clínico Universitario, Valladolid, España. eiros@med.uva.es

Enfermedades Infecciosas Y Microbiologia Clinica
|April 5, 2011
PubMed
Summary
This summary is machine-generated.

Emerging zoonoses are infectious diseases that spread from animals to humans. This review covers agent characteristics, emergence factors, and surveillance strategies for these significant public health threats.

Related Experiment Videos

Last Updated: Jun 3, 2026

Whole Genome Sequencing for Rapid Characterization of Rabies Virus Using Nanopore Technology
10:26

Whole Genome Sequencing for Rapid Characterization of Rabies Virus Using Nanopore Technology

Published on: August 18, 2023

Area of Science:

  • Veterinary Medicine
  • Epidemiology
  • Public Health

Context:

  • Zoonotic diseases pose a significant and growing threat to global health.
  • Understanding the dynamics of disease emergence is crucial for prevention.
  • Current factors influencing zoonotic disease emergence require detailed examination.

Purpose:

  • To provide a structured overview of emerging zoonoses.
  • To define characteristics of emergent disease agents.
  • To identify factors driving current zoonotic disease emergence.
  • To outline surveillance and response strategies.

Summary:

  • This review defines emergent agents and discusses factors facilitating zoonotic infections.
  • It details current surveillance, medical, and laboratory practices for emerging zoonoses.
  • The structured approach aims to clarify the complex nature of these diseases.

Impact:

  • Enhanced understanding of emerging zoonoses for researchers and public health officials.
  • Improved preparedness and response strategies for animal-to-human disease transmission.
  • Foundation for future research into zoonotic disease prevention and control.