Detection of Cryptosporidium parvum by modified acid-fast stain among cancer patients in Thi-Qar province

Zahraa Alsafi, Bassad A. Al-Aboody
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Abstract

Cryptosporidium parvum is a widespread opportunistic parasite belonging to the family Apicomplexa that completes its life cycle in a single host and is found frequently in immunocompromised persons, especially in patients with cancer. This research's objectives were to determine the prevalence of Cryptosporidium parvum infection among cancer patients in the Thi-Qar Province of Iraq, using modified Ziehl-Neelsen (MZN) stain. This study included 300 stool samples, 200 of which were for patients with cancer and 100 were for healthy people (the control group). Based on the modified acid-fast stain, the results showed the rate of infection with Cryptosporidium parvum among cancer patients was 54.0% (108/200) compared to 30.0% (30/100) in the control group, and there were statistically significant differences between them .And the percentage of infection among cancer patients in males was higher than in females, but there were no significant differences between them, as the percentage was 57.14% and 52.03%, respectively. As for the age groups Cryptosporidium parvum it affects all age groups in different proportions. The study showed that the highest infection rate among the age groups reached ?60 years at a rate of 64.44%, and the lowest infection rate among the age group ?20 years at a rate of 35.71%. As for the number doses of chemotherapy the results showed that the infection rate  was higher in patients who received half and more than half of the doses of chemotherapy, where the percentage of those who received 16-20 doses (64.0%)
用改良酸性无菌染色法检测济加尔省癌症患者体内的副孢子隐孢子虫
副隐孢子虫是一种广泛存在的机会性寄生虫,属于隐孢子虫科(Apicomplexa),在单一宿主体内完成其生命周期,经常出现在免疫力低下的人群中,尤其是癌症患者。这项研究的目的是利用改良齐氏-奈尔森(MZN)染色法确定伊拉克济加尔省癌症患者中副隐孢子虫感染的流行率。这项研究包括 300 份粪便样本,其中 200 份为癌症患者,100 份为健康人(对照组)。根据改良耐酸染色法,结果显示癌症患者感染副隐孢子虫的比例为 54.0%(108/200),而对照组为 30.0%(30/100),两者之间存在显著差异。至于年龄组,副隐孢子虫对各年龄组的影响比例不同。研究显示,60 岁以下年龄组的感染率最高,为 64.44%,20 岁以下年龄组的感染率最低,为 35.71%。至于化疗的剂量,结果显示,接受一半和一半以上剂量化疗的患者感染率较高,其中接受 16-20 剂化疗的患者感染率(64.0%)较高。
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