acid fast bacteria

简明释义

耐酸菌

英英释义

例句

1.The lab technician stained the slides to identify the presence of acid fast bacteria 耐酸性细菌 in the sample.

实验室技术员对切片进行染色，以识别样本中是否存在耐酸性细菌。

2.Mycobacterium tuberculosis is a well-known example of an acid fast bacteria 耐酸性细菌 that causes serious health issues.

结核分枝杆菌是一个众所周知的耐酸性细菌，会引起严重的健康问题。

3.Research shows that acid fast bacteria 耐酸性细菌 can survive in harsh environments, making them resilient pathogens.

研究表明，耐酸性细菌可以在恶劣环境中生存，使它们成为顽强的病原体。

4.The characteristic of acid fast bacteria 耐酸性细菌 is their ability to resist decolorization by acids during staining.

耐酸性细菌的特征是它们在染色过程中能够抵抗酸性脱色。

5.In diagnosing tuberculosis, doctors often look for acid fast bacteria 耐酸性细菌 in sputum samples.

在诊断结核病时，医生通常会在痰样本中寻找耐酸性细菌。

作文

The term acid fast bacteria refers to a group of bacteria that are resistant to decolorization by acids during staining procedures. This characteristic is primarily found in the genus Mycobacterium, which includes well-known pathogens such as Mycobacterium tuberculosis, the causative agent of tuberculosis (TB). The unique property of acid fast bacteria is attributed to their thick, waxy cell walls, which contain mycolic acids. These fatty acids make the bacteria impervious to many common stains and disinfectants, requiring specialized techniques for identification.Understanding acid fast bacteria is crucial in the field of microbiology and medicine. For instance, the Ziehl-Neelsen stain is a specific staining technique used to identify these bacteria. In this method, a red dye called carbol fuchsin is applied to the sample, followed by heating to facilitate penetration into the cell wall. Afterward, the sample is washed with acid-alcohol, which decolorizes non-acid fast organisms but leaves acid fast bacteria stained red. This distinctive color helps microbiologists and healthcare professionals quickly identify the presence of pathogenic Mycobacterium species.The clinical significance of acid fast bacteria cannot be overstated. Tuberculosis remains a major global health issue, particularly in developing countries. The World Health Organization (WHO) estimates that millions of people are infected with TB each year, leading to significant morbidity and mortality. Early detection and treatment of TB are essential for controlling its spread, and understanding the characteristics of acid fast bacteria plays a vital role in this process.Moreover, other diseases caused by acid fast bacteria include leprosy, caused by Mycobacterium leprae, and various forms of pulmonary disease associated with non-tuberculous mycobacteria (NTM). These NTM can also be identified through similar staining techniques, emphasizing the importance of recognizing acid fast bacteria in clinical samples.In addition to their medical relevance, acid fast bacteria also have ecological implications. They can be found in various environments, including soil and water, where they play a role in nutrient cycling. Understanding their ecological niche helps scientists appreciate the broader impact of these organisms beyond human health.In conclusion, the study of acid fast bacteria is an essential aspect of microbiology and public health. Their unique characteristics necessitate specialized diagnostic techniques, and their role in human disease highlights the need for ongoing research and awareness. As we continue to confront challenges posed by infectious diseases, knowledge about acid fast bacteria will remain critical in our efforts to improve health outcomes worldwide.

“酸快细菌”是指在染色过程中对酸的去色化具有抵抗力的一类细菌。这一特性主要存在于分枝杆菌属（Mycobacterium）中，其中包括众所周知的病原体，如结核分枝杆菌（Mycobacterium tuberculosis），即结核病（TB）的致病因子。“酸快细菌”的独特特性归因于其厚厚的蜡质细胞壁，含有分枝脂酸（mycolic acids）。这些脂肪酸使得细菌对许多常见染料和消毒剂不透水，因此需要专门的技术进行鉴定。理解“酸快细菌”在微生物学和医学领域至关重要。例如，齐尔-尼尔森染色法是一种用于识别这些细菌的特定染色技术。在此方法中，样本上施加一种称为碳芳香胺（carbol fuchsin）的红色染料，然后加热以促进其渗透到细胞壁中。随后，用酸-酒精洗涤样本，这会使非酸快细菌去色，但保留“酸快细菌”染成红色。这种独特的颜色帮助微生物学家和医疗专业人员快速识别病原性分枝杆菌物种的存在。“酸快细菌”的临床意义不容小觑。结核病仍然是全球健康的重大问题，尤其是在发展中国家。世界卫生组织（WHO）估计，每年有数百万人感染结核病，导致显著的发病率和死亡率。早期检测和治疗结核病对于控制其传播至关重要，而理解“酸快细菌”的特征在这一过程中发挥着重要作用。此外，由“酸快细菌”引起的其他疾病包括麻风，由麻风分枝杆菌（Mycobacterium leprae）引起，以及与非结核分枝杆菌（NTM）相关的各种形式的肺部疾病。这些NTM也可以通过类似的染色技术进行鉴定，强调了在临床样本中识别“酸快细菌”的重要性。除了它们的医学相关性外，“酸快细菌”还具有生态意义。它们可以在土壤和水中找到，在这些环境中，它们在养分循环中发挥作用。理解它们的生态位有助于科学家欣赏这些生物体对人类健康之外的更广泛影响。总之，研究“酸快细菌”是微生物学和公共卫生的重要方面。它们独特的特性需要专门的诊断技术，而它们在人类疾病中的作用突显了持续研究和意识的必要性。随着我们继续面对传染病带来的挑战，关于“酸快细菌”的知识将继续在改善全球健康结果的努力中保持关键。