Aggregatibacter aphrophilus was previously known as Haemophilus aphrophilus and is a rare cause of disease in humans. A recent reclassification of these organisms has placed them in the new genus of Aggregatibacter species. The organism seems to be a normal component of oral flora and has been reported to cause endocarditis, sinusitis, pneumonia, empyema, soft tissue abscess, meningitis, verteb...

The species of Capnocytophaga and Aggregatibacter are normal flora and mostly cause periodontal diseases. The soft tissue infection caused by Aggregatibacter often is associated with Actinomyces species. Beside, most Capnocytophaga infections are described in immunocompromised patients. We identified facial cellulitis caused by Capnocytophaga spp and Aggregatibacter (Actinobacillus) actinomycet...

The aim of this review is to provide a comprehensive update on the current classification and identification of Haemophilus and Aggregatibacter species with exclusive or predominant host specificity for humans. Haemophilus influenzae and some of the other Haemophilus species are commonly encountered in the clinical microbiology laboratory and demonstrate a wide range of pathogenicity, from life...

OBJECTIVES Acute appendicitis is a common surgical emergency. The etiology and pathophysiology of appendicitis have been well investigated. Aggregatibacter aphrophilus is a fastidious gram-negative coccobacilli. Detection of this organism in clinical samples and its differentiation from Haemophilus aphrophilus or from Aggregatibacter actinomycetemcomitans in routine microbiology settings could ...

Aggregatibacter aphrophilus (formerly Haemophilus aphrophilus/paraphrophilus) is a small Gram-negative coccobacillus with fastidious growth requirements. It is a normal commensal of the human oropharynx and upper respiratory tract, and it can infrequently cause invasive human diseases, including bone and joint infections and subacute infective endocarditis. Cases of liver abscess caused by Aggr...

Periodontopathogenic bacteria are gram-negative, anaerobic or facultative organisms that exhibit various virulent factors. Aggregatibacter actinomycetemcoitans and organisms belonging to the ‘red complex’ that are P. gingivalis, T. denticola, T. forsythia are secondary colonisers and appear later in biofilm formation [4]. Aggregatibacter actinomycetemcomitans is generally associated with locali...

Aggregatibacter paraphrophilus (former name, Haemophilus paraphrophilus) is a normal inhabitant of the naso- and oropharynx and has been rarely reported as a cause of human infections. A case of infective endocarditis by this organism is being reported and literature of endocarditis cases caused by Aggregatibacter paraphrophilus is being reviewed.

We report the draft genome sequences of Aggregatibacter actinomycetemcomitans strains 310a (310-TR) and 310b (310-OS). Strain 310a is a clinical isolate with a rough phenotype. Strain 310b is a laboratory-adapted isolate derived from the passage of 310a and displays a smooth phenotype.

Aggregatibacter Actinomycetemcomitans (A.a.) é uma bactéria gram-negativa estrita que desempenha um papel relevante na disbiose periodontal e, consequentemente, no desenvolvimento da periodontite.