<prompt> Which of the following statements concerning immunoglobulins is wrong -Igm does not cross placentaIgE is ed in parasitic infectionIgM increased in primary responseFetal infection is characterised by increased in IgG  <response>: IgM antibodies do not pass across the human placenta. Demonstrating IgM antibodies in a patients serum indicates recent infection, or in a neonates serum indicates intrauterine infection Reff: Ananthanarayan Parkers textbook of microbiology 9th edition pg:98 