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临床传染病:开放获取

体积 8, 问题 1 (2024)

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Invasive Fungal Diseases: A Comprehensive Review

Sandra Soriano

Invasive Fungal Diseases (IFDs) represent a significant burden on global healthcare systems, posing substantial challenges in diagnosis, treatment and prevention. Fungi, ubiquitous in nature, can become opportunistic pathogens, particularly in individuals with weakened immune systems. IFDs have been on the rise in recent decades, primarily due to the increasing number of immunocompromised patients, such as those with HIV/AIDS, cancer undergoing chemotherapy, organ transplant recipients and individuals receiving prolonged corticosteroid therapy. Additionally, advances in medical technology, including invasive procedures and broad-spectrum antimicrobial use, contribute to the growing incidence of IFDs. Geographically, the prevalence of specific fungal pathogens varies. Candida species are the most common cause of IFDs worldwide, with Candida albicans being the predominant species. Aspergillus species, including Aspergillus fumigatus, are prevalent in environmental sources and cause invasive aspergillosis, particularly in immunocompromised individuals. Other fungi implicated in IFDs include Cryptococcus neoformans, Histoplasma capsulatum and Mucorales species.

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Fungal Onslaught: Understanding Invasive Fungal Diseases

Imad Sendi

Invasive fungal diseases represent a significant threat to human health, particularly in individuals with compromised immune systems. These diseases are caused by various fungi that have the capability to invade tissues and organs, leading to serious illness and sometimes death if left untreated. Understanding the mechanisms behind invasive fungal diseases, their risk factors, diagnostic methods and treatment options is crucial for effective management and prevention. Fungi are ubiquitous in our environment and while many are harmless or even beneficial, some species can cause severe infections in humans. Invasive fungal diseases occur when fungi penetrate deep into the body's tissues, often spreading rapidly and causing systemic infections. The incidence of these diseases has been on the rise in recent years, particularly among immunocompromised individuals such as those undergoing chemotherapy, organ transplant recipients and individuals living with HIV/AIDS.

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Cytomegalovirus Infection: An Invisible Threat

Natalie Duin

Cytomegalovirus (CMV) infection is a stealthy menace that often lurks unnoticed within our communities. Despite its relatively low profile in public discourse, CMV is a widespread and potentially serious health concern, particularly for vulnerable populations such as newborns, transplant recipients and individuals with weakened immune systems. Cytomegalovirus belongs to the herpesvirus family and is one of the most common viral pathogens infecting humans worldwide. It is estimated that a significant proportion of the global population is seropositive for CMV, indicating exposure to the virus at some point in life. CMV transmission primarily occurs through close contact with bodily fluids, including saliva, urine, blood and breast milk. Additionally, transmission can occur through organ transplantation, blood transfusion and vertical transmission from mother to fetus during pregnancy.

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Clostridium Difficile Infection: Battling the Gut Menace

Jose Fernandez

Clostridium Difficile Infection (CDI) poses a significant challenge to healthcare systems worldwide, particularly in hospital settings. This bacterium, commonly found in the environment and in the gut flora of some individuals, can lead to a range of symptoms from mild diarrhea to severe and life-threatening complications. In recent years, the incidence and severity of CDI have increased, necessitating a deeper understanding of its causes, risk factors, diagnostic methods and treatment options. Clostridium difficile, often referred to as C. difficile or C. diff, is a Gram-positive, spore-forming bacterium notorious for causing antibiotic-associated diarrhea and colitis. It is one of the leading causes of healthcare-associated infections globally. C. difficile spores are resilient, capable of surviving in the environment for prolonged periods, making transmission both possible and challenging to prevent. While the bacterium may exist harmlessly in the gut flora of healthy individuals, disruptions to the microbiota, typically due to antibiotic use, allow C. difficile to proliferate and produce toxins, leading to infection.

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