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New Tools in Laboratory Diagnosis of Invasive Fungal Infections

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The Impact of Climate Change on Fungal Diseases

Part of the book series: Fungal Biology ((FUNGBIO))

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Abstract

There are millions of fungi on planet earth; fortunately only a few dozen are responsible for most human infections. Invasive fungal infections (IFIs) have become increasingly important with the emergence of diseases and immunosuppressive treatments. On the other hand, in recent years, we have witnessed the emergence of new pathogenic species, as well as significant changes in the epidemiology of systemic mycoses, possibly related to climate change. Diagnosis of IFIs is challenging. Most clinical laboratories have basic tests, which delay diagnosis; a few other laboratories have molecular and/or point-of-care tests, which are approved for clinical laboratory use and have revolutionized the diagnosis of IFIs. However, all these tests allow the diagnosis of specific diseases, so there must be a high clinical suspicion of the organism causing the infection. On the other hand, only a few laboratories have tools such as next-generation sequencing, which have allowed a breakthrough in the investigation and diagnosis of fungal infections. It is hoped that soon these technologies will be available in a greater number of laboratories and that their impact on the diagnosis and treatment of patients will be greater.

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Abbreviations

BDG:

(1,3)-β-D-Glucan

CE:

Conformité Européenne

CSF:

Cerebrospinal fluid

EAPCRI:

European Aspergillus PCR Initiative

EIA:

Enzyme immunoassay

EORTC/MSGERC:

The European Organisation for Research and Treatment of Cancer and the Mycoses Study Group Education and Research Consortium

FDA:

Food and Drug Administration

GM:

Galactomannan

HIV:

Human immunodeficiency virus

HRM:

High resolution melting analysis

IA:

Invasive aspergillosis

IC:

Invasive candidiasis

IFIs:

Invasive fungal infections

IHAG:

International Histoplasmosis Advocacy Group

ITS:

Internal transcribed spacer

MALDI-TOF MS:

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry

NGS:

Next-generation sequencing

PCP:

Pneumocystis jirovecii pneumonia

PNA-FISH:

In situ hybridization using fluorescently labeled nucleic acid probes

qPCR:

Quantitative PCR amplification

SNPs:

Single nucleotide polymorphisms

VOCs:

Volatile organic compounds

WGS:

Whole genome sequencing

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Martínez-Gamboa, R.A. (2022). New Tools in Laboratory Diagnosis of Invasive Fungal Infections. In: Frías-De-León, M.G., Brunner-Mendoza, C., Reyes-Montes, M.d.R., Duarte-Escalante, E. (eds) The Impact of Climate Change on Fungal Diseases. Fungal Biology. Springer, Cham. https://doi.org/10.1007/978-3-030-89664-5_15

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