Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Intracellular Movement of Viruses and Bacteria

Intracellular Movement of Viruses and Bacteria

Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a...

Bacterial Phylum Spirochaetes

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...

Bacterial Phylum Chlamydiae

Bacterial Phylum Chlamydiae

The phylum Chlamydiae or Chlamydiota is composed of a single order, Chlamydiales. This phylum consists entirely of obligate intracellular parasites that infect eukaryotic hosts. While human pathogens within this group have been studied extensively, the phylum encompasses many species capable of interacting with various eukaryotic organisms. Members of Chlamydiae are typically small cocci, approximately 0.5 μm in diameter, and exhibit a distinctive developmental cycle. As is characteristic...

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...

Bacterial Phylum Tenericutes

Bacterial Phylum Tenericutes

The phylum Tenericutes, which includes the single class Mollicutes, comprises bacteria that lack cell walls. The term "Mollicutes" derives from the Latin word mollis, meaning "soft." These organisms are among the smallest known and are commonly referred to as mycoplasmas due to the prominence of the genus Mycoplasma, which includes well-known human pathogens. Despite their inability to stain gram-positively (a result of their lack of cell walls), mycoplasmas are phylogenetically related to the...

Diversity of Protists I

Diversity of Protists I

Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Biliary Tract and Pancreatic Cancer (BTPC) in Adult Patients: The Role of the Biliary Microbiota in Cancer and Therapeutic Strategies-A Scoping Review.

Cancers·2026

Same author

Outpatient Parenteral Antimicrobial Therapy in a Setting with High Prevalence of Multidrug Resistance: Challenges, Opportunities, and Stewardship Considerations.

Antibiotics (Basel, Switzerland)·2026

Same author

Hypertransaminasemia Is a Marker of Severity in Children Hospitalized for Influenza.

Influenza and other respiratory viruses·2026

Same author

Rhizobium radiobacter bloodstream infection associated with long-term central venous access in an infant with Pompe disease.

Le infezioni in medicina·2026

Same author

Effectiveness and Safety Profile of BIC/TAF/FTC in People living with HIV Switched from Other Antiretroviral Regimens: A Real-Life Retrospective Cohort Analysis.

Le infezioni in medicina·2026

Same author

Successful eravacycline monotherapy for cefiderocol-resistant Acinetobacter baumannii bloodstream infection in a critically ill patient with concomitant Clostridioides difficile colitis.

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases·2026

Search research articles

Related Experiment Video

Updated: Nov 18, 2025

An Electroporation Method to Transform Rickettsia spp. with a Fluorescent Protein-Expressing Shuttle Vector in Tick Cell Lines

An Electroporation Method to Transform Rickettsia spp. with a Fluorescent Protein-Expressing Shuttle Vector in Tick Cell Lines

Published on: October 11, 2022

Rickettsiales in Italy.

Cristoforo Guccione¹, Claudia Colomba^1,2, Manlio Tolomeo¹

¹Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties- University of Palermo, 90127 Palermo, Italy.

Pathogens (Basel, Switzerland)

|February 11, 2021

Summary

This study reviewed Rickettsiales in Italy, identifying 36 species. Six Rickettsiales species were found in humans, highlighting the need for routine molecular surveillance in tick-bite patients.

Keywords:

Anaplasma Ehrlichia Orientia Rickettsia Rickettsiales

More Related Videos

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)

Published on: October 31, 2025

Tick Artificial Membrane Feeding for Ixodes scapularis

Tick Artificial Membrane Feeding for Ixodes scapularis

Published on: November 30, 2022

Related Experiment Videos

Last Updated: Nov 18, 2025

An Electroporation Method to Transform Rickettsia spp. with a Fluorescent Protein-Expressing Shuttle Vector in Tick Cell Lines

An Electroporation Method to Transform Rickettsia spp. with a Fluorescent Protein-Expressing Shuttle Vector in Tick Cell Lines

Published on: October 11, 2022

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)

Published on: October 31, 2025

Tick Artificial Membrane Feeding for Ixodes scapularis

Tick Artificial Membrane Feeding for Ixodes scapularis

Published on: November 30, 2022

Area of Science:

Microbiology
Infectious Diseases
Public Health

Background:

Limited updated information exists regarding the prevalence of Rickettsiales in Italy.
Rickettsiales are a group of intracellular bacteria transmitted by arthropods, posing potential health risks.
Understanding their distribution in humans, vectors, and animal hosts is crucial for public health surveillance.

Purpose of the Study:

To provide an updated overview of Rickettsiales species identified in Italy.
To focus on Rickettsiales detected in humans, potential arthropod vectors, and animal hosts.
To assess the current situation of Rickettsiales in Italy using molecular identification methods.

Main Methods:

A comprehensive computerized literature search was performed using PubMed.
The search included studies published up to December 31, 2020, without language restrictions.
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology guided the review process.

Main Results:

A total of 36 Rickettsiales species were identified across the reviewed literature.
Six species were detected in human tissues: Anaplasma phagocytophilum, Rickettsia conorii, R. conorii subsp. israelensis, R. monacensis, R. massiliae, and R. slovaca.
Various Rickettsiales species were also found in blood-sucking arthropods and potential animal hosts.

Conclusions:

The study identified specific Rickettsiales species in Italian human populations and potential transmission vectors.
Pathogens transmitted by arthropods may cause poorly characterized human diseases, necessitating further investigation.
Routine molecular detection of Rickettsiales in individuals with arthropod bites and in ticks is recommended for enhanced surveillance.