Related Experiment Video
Updated: Jul 24, 2026

09:34
Concomitant Isolation of Primary Astrocytes and Microglia for Protozoa Parasite Infection
Published on: March 18, 2020
Otomycosis in São Paulo
L Zaror1, O Fischman, F A Suzuki
1Escola Paulista de Medicina, São Paulo, Brasil.
Summary
This study investigated otomycosis in Brazil, finding Aspergillus niger and Candida albicans as common causes. Key factors included lack of earwax and chronic ear infections, highlighting the need for further research.
Area of Science:
- Otolaryngology
- Mycology
- Infectious Diseases
Background:
- Otomycosis, a fungal ear infection, is under-researched in Brazil.
- Understanding its incidence and characteristics is crucial for public health.
Purpose of the Study:
- To determine the incidence of otomycosis in Brazil.
- To describe the clinical features and predisposing factors of otomycosis.
Main Methods:
- A one-year prospective study of suspected otomycosis cases.
- Identification of fungal species through laboratory isolation.
- Clinical data collection on signs and predisposing factors.
Main Results:
- 20 out of 22 suspected cases were confirmed otomycosis.
- Aspergillus niger (35%) and Candida albicans (20%) were the most frequent species; Aspergillus genus accounted for 75%.
- Common signs included itching, hyperemia, otalgia, and hearing loss. Lack of cerumen, chronic otitis, antibiotic therapy, and eczema were significant predisposing factors.
Conclusions:
- Otomycosis is prevalent in Brazil, with Aspergillus species being dominant.
- Clinical presentation and predisposing factors provide insights for diagnosis and prevention.
- Further epidemiological studies are warranted.
Related Concept Videos
Skin Diseases and Disorders
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Microbiome of the Eye
The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
Leishmaniasis
Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
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...
American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Candidiasis
Candidiasis is a fungal infection caused by opportunistic species of Candida. It can affect various anatomical sites, including the skin, oral cavity, nails, and genitourinary tract. Among its forms, vaginal candidiasis is the most common type of mucosal infection. It typically results from the overgrowth of Candida albicans in the vaginal mucosa. Under normal conditions, C. albicans exists as a commensal organism within the vaginal microbiota, regulated by the dominance of lactobacilli, which...

