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Related Concept Videos

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...
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,...
Infection01:20

Infection

When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
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...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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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Infecting Mice with Malassezia spp. to Study the Fungus-Host Interaction
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[Imported infectious diseases in Spain].

Gerardo Rojo Marcos1, Juan Cuadros González, Alberto Arranz Caso

  • 1Servicio de Medicina Interna, Hospital Príncipe de Asturias, Alcalá de Henares, Madrid, España. grojo.hupa@salud.madrid.org

Medicina Clinica
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Summary

The rise in international travel and immigration in Spain has led to more imported infectious diseases, increasing scientific publications on these tropical infections. Public health risk remains low, but global control and healthcare access are crucial.

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Area of Science:

  • Tropical Medicine
  • Infectious Diseases Epidemiology
  • Public Health

Context:

  • Increased international travel and immigration in Spain correlate with a rise in imported infectious diseases.
  • Many imported cases originate from tropical and subtropical regions.
  • A growing body of scientific literature from Spanish authors addresses these imported infections.

Purpose:

  • To analyze the trend of imported infectious diseases in Spain.
  • To highlight the association between travel/immigration and the incidence of these diseases.
  • To discuss public health implications and control strategies.

Summary:

  • Spain is experiencing an increase in imported infectious diseases due to global mobility.
  • These diseases are caused by various pathogens including parasites, fungi, mycobacteria, bacteria, and viruses.
  • Scientific output on imported infections by Spanish researchers is also rising.

Impact:

  • While the overall public health risk is low, effective prevention and control are essential.
  • Universal healthcare access and equitable socioeconomic conditions are vital for managing imported diseases.
  • Continuous clinical and epidemiological training for health personnel, alongside global control initiatives, is recommended.