environmental surveillance

What Do We Know About Cryptococcus spp. in Portugal? One Health Systematic Review in a Comprehensive 13-Year Retrospective Study (2013–2025)

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This study examines cryptococcosis, a fungal infection that affects both animals and humans, across Portugal from 2013-2025. Researchers found that about 4.5% of animal samples tested positive for Cryptococcus species, with infections most common in dogs and cats. The infections peaked during summer months and were most prevalent in central Portugal, with different fungal species affecting different animal types. The research emphasizes the importance of coordinated monitoring across animals, humans, and the environment to better understand and control this disease.

Mapping Histoplasma spp. in bats and cave ecosystems: evidence from midwestern Brazil

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Researchers studied caves in midwestern Brazil and found that a fungal pathogen called Histoplasma, which causes a serious lung disease called histoplasmosis, is present in cave environments and in bats. They developed a quick DNA test to detect this fungus in cave soil samples and bat tissue samples. The study identified specific caves with high levels of the fungus, which could help warn visitors and cave explorers about the risk of infection.

Occurrence of Pathogenic and Allergenic Molds in the Outdoor and Indoor Environment of a Major Hospital and Molecular Epidemiology of Aspergillus fumigatus in Kuwait

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Researchers studied molds found in and around a major hospital in Kuwait over 17 months, collecting over 6,000 mold samples. They discovered various mold species, including some that can cause serious infections in hospital patients. Importantly, they found drug-resistant Aspergillus fumigatus strains both outdoors and inside the hospital, suggesting the environment may be a source of infection for vulnerable patients. The findings highlight the need for better monitoring and control of molds in hospital settings.

Genetic sequencing of the airborne fungal spectrum and air quality at a public hospital in Mexico City

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Researchers tested the air inside and outside a Mexico City hospital to identify harmful fungi that could make patients sick. Using two different sampling methods, they found 27 different fungal species, including dangerous ones like Aspergillus fumigatus that cause serious infections especially in people with weakened immune systems. The study shows that hospitals need better air monitoring systems to protect vulnerable patients from these airborne infections.

Mapping Histoplasma spp. in bats and cave ecosystems: evidence from midwestern Brazil

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Researchers studied caves in Brazil to find where a fungus called Histoplasma that causes histoplasmosis disease is located. They tested soil from caves and tested bats that live in these caves. They found the fungus in about 20% of cave soil samples and in one-third of the bats tested. Multiple bat species were carriers of the fungus, and researchers even found it in bat brains for the first time.

Geographical distribution of Cryptococcus neoformans in Iran, pathogenic factors, and antifungal susceptibility profile

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Researchers tested pigeon droppings from across Iran to find a dangerous fungus called Cryptococcus neoformans that can cause serious lung infections. They found this fungus in about 8.6% of samples, with more present in some provinces than others. The fungus showed concerning resistance to some common antifungal medications but remained sensitive to others like voriconazole, which could help guide treatment decisions.

Prevalence of fungi and their antifungal and disinfectant resistance in hospital environments: insights into combating nosocomial mycoses

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This study examined how fungal infections spread in hospital settings by testing air and surfaces in Iranian hospital intensive care units. Researchers found that dangerous fungi like Aspergillus and Rhizopus were commonly present, especially in air ducts, and many of these fungi could resist common antifungal medications and disinfectants. The findings suggest that hospital environments serve as sources of infection for vulnerable patients and that better cleaning and air filtration systems are needed to protect hospitalized patients.

Environmental sources of Cryptococcus neoformans species complex in Kampala, Uganda: A preliminary study

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Researchers in Uganda identified where dangerous fungal organisms that cause meningitis live in the environment. They tested droppings from birds and chickens, and bark from eucalyptus trees. They found that a harmful fungus called Cryptococcus neoformans was present in marabou stork droppings and eucalyptus tree bark, but not in chicken droppings or another related fungus species called C. gattii. This helps explain why some people in Uganda get cryptococcal meningitis, a serious brain infection.

Research Keyword: environmental surveillance