About a year https://www.bridgetronic.com/stmap_64tgzttt.html?cialis.motilium.clomid.enhance9 cyproheptadine hcl and tricholine citrate syrup "We are definitely concerned, but we are also reassured by the absence of a large number of blood transmission cases to date," said Noel Gill, lead investigator on the report at Public Health England. If the disease spread easily through donated blood products, more cases should have been seen by now, he added.