He was responding to news reports about a Siriraj Hospital doctor coming up with anti-Ebola serum. Prasert said he did not know the details, but it could have just been a study about an antibody that could be developed into a serum.
There are now five types of certified and proven serums depending on production methods and sources of antibody agents, including one extracted from the blood of Ebola patients, which has been certified by the World Health Organisation.