A pregnant woman's reaction to flu, viruses and other infections may increase the risk of schizophrenia in her child, Temple researchers suggest. Lead researcher Lauren Ellman of Temple's Psychology Department says that exposure during pregnancy to certain immune proteins — such as those produced in response to the flu — raises the risk of giving birth to offspring who develop brain alterations associated with schizophrenia. Ellman says that not all of the children of mothers showing an increase in the immune protein developed brain alterations.