\n\n
同时,HPV 抵抗力比较强,能够耐受在干燥的环境中长期生存,对温度的要求也不高。因此,HPV 的感染途径也比较多。主要感染途径包括以下五种:
\n\n说起 HPV,我们第一个想到的传播方式就是性传播。很早就有研究证实[1],没有经历性生活的女孩是不会发生宫颈和阴道的 HPV 感染的。在长期的研究中也发现,感染人乳头状瘤病毒的常见危险因素中,有许多因素都与性传播相关[2]。主要的危险因素包括:
\n\n我们前面提到过,HPV 不仅存在于女性的宫颈和阴道里,还可能生活在外阴、肛门、直肠、手足、口腔甚至于食道和咽喉的黏膜里。因此,这些部位的“亲密接触”也可能引起 HPV 感染。
\n\nHPV 作为生命力顽强的一种病毒,因此,可以在感染者使用过的衣物、生活用品、用具等物品中长期存活,接触这些感染的物品也是 HPV 感染的常见途径之一。在这里,我建议大家一定要改正以下的不良习惯:
\n\n医务人员在治疗护理时防护不好,造成自身感染或通过医务人员传给患者。有研究发现[3],治疗宫颈癌前病变时由于烧灼产生的烟雾中也存在活的 HPV,这些病毒的长期吸入会增加罹患鼻咽、口咽癌症的风险。
\n\n在某些医院的手术室中,如果对于无菌要求不严格,或者没有严格执行无菌措施,就可能造成患者在手术中暴露于各种细菌病毒中。此时,患者正在经历手术、麻醉后免疫力低下,手术中和围手术期里细菌病毒感染的风险会明显增加。
\n\n那么,怎么了解医疗环境是不是无菌安全呢?
\n\n在这里,建议大家选择正规医院去看病。正规医院通常采用层流手术室,就是说会采用空气洁净技术,对微生物污染采取控制,以达到保证空间环境中空气洁净度满足进行各类手术的要求。而且,医院会提供适宜的温度、湿度,创造一个清新、洁净、舒适、细菌数低的手术空间环境,使患者在手术时组织受到尽可能少的损伤,并大大减低感染率,保证患者术后能够更快地恢复。
\n\n除此之外,正规医院的手术器械会严格按照国家的标准进行清洁消毒,使用前由护士核实消毒完成情况。医院会配备有感染科,专职定期对手术室设备进行细菌检测,检查医护人员术前洗手步骤是否规范,并且对洗手后的菌落情况进行抽查,如有异常及时整改。这样看来,正规医院的医疗环境还是很有保障的!
\n\n母婴传播的风险往往常见于阴道分娩的过程中,由婴儿通过孕妇产道的密切接触引起。
\n\n在这里,我们要特别强调,在备孕期间的孕前检查中进行宫颈疾病筛查的重要性,尤其是二胎的妈妈更加应该重视起来。如果发现宫颈病变需要及时治疗,以免怀孕期间宫颈疾病加速进展,造成严重的后果。
\n\n同时,孕前检查宫颈正常的准妈妈们就不需要过度担心了。相信一些有经验的妈妈们会发现孕妇是不容易感冒的,而感冒病毒和 HPV 都属于病毒家族,因此,在孕期感染 HPV 风险会比平时明显降低。这是因为怀孕期间准妈妈的卵巢会产生大量的雌激素和孕激素,这些激素会让身体免疫能力明显提升,为宝宝创造爱的屏障,抵御病毒的侵袭。
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