title: [Detection of serum antibody of coxsackievirus A24 variant].
abstract: OBJECTIVE
  To observe the serum antibody in residents after outbreak of acute hemorrhagic conjunctivitis (AHC) caused by coxrackievirus (CA24 v).
  
  
  METHODS
  The serum was diluted in 1:10 and mixed with 100 TCID50 CA24 v in volume. The same the mixture was incubated 1 hour in 37 degrees C and then observed for cytopathic changes of the infected HeLa cells.
  
  
  RESULTS
  The post-epidemic antibody positive rate in residents was 49.67% and in 19-25 age group was about 69.49%. It had significant difference statistically (P < 0.01).
  
  
  CONCLUSIONS
  The raising of CA24 v antibody level in residents was relevent with age. May be it was caused by the opporturnities of taking part in social activities in different age groups.
authors.affiliation: Affiliated Hospital of Qindao Medical College, Qindao 266003.
authors.forename: R
authors.initials: R
authors.lastname: Meng
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: L
authors.initials: L
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003232:Conjunctivitis, Acute Hemorrhagic / Q000453:epidemiology / Q000821:virology*; D003384:Coxsackievirus Infections / Q000276:immunology / Q000821:virology*; D030015:Enterovirus C, Human / Q000276:immunology*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D016036:Seroepidemiologic Studies
chemical_list: D000914:Antibodies, Viral