immunisation, mice were sedated using isoflurane and 10 μL of vaccination preparation was slowly applied to each nostril using a micropipette.
Vaccine preparation, vaccination and clinical observation were performed in separated rooms.
Once eligibility was confirmed, specific unblinded study personnel were responsible for determining vaccine allocation as assigned by the internet based randomization system at each vaccination visit, vaccine preparation, and administration.
Although this virus generally causes only mild clinical symptoms, a number of severe cases have been described, prompting rapid development of specific vaccine preparations for mass vaccination [4], [5], [6], [7].
The amount of virus in the needle before the accident was approximately 1,000 times higher than the amount in the vaccine preparations used for smallpox vaccination (1 ).
When CCPP vaccination was performed, notably in Ethiopia, the vaccines used were preparations that had already been authorized for market release in the country concerned, or vaccine preparations with similar constituents but at lower doses.
Prevention relies on vaccination which has several major limitations including the lag time for vaccine preparation and the low vaccination coverage rate.
58 Subsequent repeat vaccination, including a different conjugate vaccine preparation, also failed to induce immunity.
Our initial studies focused on vaccination with preparations comprised of whole influenza virus conjugated to oxidised mannan, in an effort to target the virus directly to DCs, via the mannose receptor [ 11, 12].
Furthermore, intranasal vaccination would make administration of such a vaccine preparation highly advantageous in developing countries and high priority should be given to evaluating its efficacy in humans.
