title: [Inactivation of EV71 by Exposure to Heat and Ultraviolet Light].
abstract: Enterovirus 71 (EV71) is a major agent of hand, foot and mouth disease that can cause a severe burden of disease to children. To identify an effective method for the control and prevention of EV71, we studied the effect of exposure to heat and ultraviolet (UV) light upon EV71 inactivation. We found that exposure to 50 degrees C could not inactivate the infectivity of EV71. However, exposure to 60 degrees C and 70 degrees C could inactivate EV71 effectively. EV71 could be inactivated after exposure to UV light at a distance between the sample and a lamp of 30 cm for 30 min or 60 min because viral genomic RNA was destroyed. However, fetal bovine serum (FBS) could attenuate the inactivation proffered by heat and UV light. Attenuation effects of FBS were correlated positively with FBS concentration. Hence, EV71 can be inactivated by exposure to heat and UV light, and our results could provide guidance on prevention of the spread of EV71.
authors.forename: Jing
authors.initials: J
authors.lastname: Xie
authors.forename: Dandi
authors.initials: D
authors.lastname: Li
authors.forename: Guangcheng
authors.initials: G
authors.lastname: Xie
authors.forename: Yaqian
authors.initials: Y
authors.lastname: Hu
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhang
authors.forename: Xiangyu
authors.initials: X
authors.lastname: Kong
authors.forename: Nijun
authors.initials: N
authors.lastname: Guo
authors.forename: Yuning
authors.initials: Y
authors.lastname: Li
authors.forename: Zhaojun
authors.initials: Z
authors.lastname: Duan
mesh_terms: D004203:Disinfection / Q000295:instrumentation / Q000379:methods*; D029821:Enterovirus A, Human / Q000235:genetics / Q000502:physiology* / Q000528:radiation effects*; D004769:Enterovirus Infections / Q000821:virology*; D006358:Hot Temperature; D006801:Humans; D014466:Ultraviolet Rays; D038301:Virus Inactivation / Q000528:radiation effects*