The CDC Monthly Morbidity Report is a good place to start. SAAMSA is another, along with NIAA.
its accuracy can be corroborated
Not true
It is reliable
"Credible" is defined as "Being believable, based on information, source or fact." - Something that is credible, is reliable, it's trustworthy.
study information from texts on ancient China and N. America to discern which source is credible
The credibility of a certain a certain blog depends on its content. You can identify it.
If a source is biased, it provides information which is slanted one way or another. It isn't a credible source because it isn't presenting the facts in a straight-forward manner.
Yes,fairly reliable.
Credible is believable, based on information or fact; not credible is not believable because it may be based on opinion, a biased source, and contain little actual information or fact.
Ask yourself if the source of the information is credible.
WikiAnswers is not a credible source. Credible means believable. Some examples: Diplomas hanging in my doctor's office show me that she is credible. A witness who does not come across to the jury as credible will not help the case. I didn't let the man into our home because his claim to be a police officer did not seem credible.
Wiki isn't a credible source, because, it doesn't really give off correct information.