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Updated: Jul 15, 2026

Influenza Virus Propagation in Embryonated Chicken Eggs
Published on: March 19, 2015
[The primordial reservoir in the infectious contagion cicle. The avian influenza model]
Abstract:
An update of the role of the primordial reservoir in the biological cycle of the process of infection and contagion is made, using diseases of very frequent incidence at the present moment in the Mediterranean Area and the Iberian Peninsula. These diseases are, amongst others Severe and Acute Respiratory Syndrome (SARS), Rabies, Lyme disease, African Horse Sickness, Blue Tongue, African Swine Fever, Ebola Hemorrhagic Fever, Hantavirosis, and Avian Influenza. The zoonoses classification proposed by the WHO Control Center in Athens in 1994 for the Mediterranean Area, based on the type of reservoir, the importance of the process and the type of transmission, and not focusing on the etiological agent, is very positively valued. Finally, the problem of Avian Influenza and the real risk posed by aquatic migratory birds in the diffusion and contagion of the present Avian Influence epidemics is reviewed.
Insights
The primordial reservoir
Area of Science:
- Epidemiology
- Infectious Diseases
- One Health
Context:
- Focuses on the Mediterranean and Iberian Peninsula.
- Examines prevalent infectious diseases like SARS, rabies, Lyme disease, and avian influenza.
- Highlights the role of reservoirs in disease transmission cycles.
Purpose:
- To update the understanding of primordial reservoirs in infection and contagion.
- To evaluate the WHO zoonoses classification for the Mediterranean Area.
- To review the specific threat of avian influenza spread by migratory birds.
Summary:
- Reviews the role of primordial reservoirs in disease cycles, including frequent Mediterranean and Iberian Peninsula diseases.
- Appraises a WHO zoonoses classification based on reservoir type and transmission, not etiology.
- Assesses avian influenza risks from migratory birds in current epidemics.
Impact:
- Provides insights into disease ecology and transmission dynamics.
- Informs public health strategies for zoonotic disease control.
- Contributes to understanding the spread of infectious diseases in specific geographic regions.
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