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The history section was indeed copied from PubMed.gov, because they inform in their Policies section that "Public domain information on the National Library of Medicine (NLM) Web pages may be freely distributed and copied." Sorry if I understood it wrongly. — capmo ( talk) 16:03, 28 July 2015 (UTC) reply

I have re-written the problematic paragraph. — capmo ( talk) 16:28, 28 July 2015 (UTC) reply

Anything which is written by an employee of the US federal government is in the public domain and can be freely used. This includes text written by employees of the NIH. However this text is only hosted by the NIH, it was originally published in some academic journal and so it's probably copyrighted. (In their disclaimer they go on to say that PubMed contains copyrighted material written by other people.)
I've removed another section because it appears to be copied from somewhere else. This can also be restored if it's rewritten. Hut 8.5 18:39, 1 August 2015 (UTC) reply

@ Hut 8.5: The text was not "copied", I had already rewritten most of it. Please compare:

What is in the source text:

"The proposal to discover LD in Brazil arose in 1989 as a suggestion of Dr. Allen C. Steere since Ixodid ticks were present in Brazil. The initial multidisciplinary research group consisted of Professors Domingos Baggio (an entomologist from ICB, USP), Paulo Yasuda (a microbiologist from ICB, USP) and Natalino H. Yoshinari (a physician from FM, USP). At that time, LD was an unknown subject among Brazilian physicians, and therefore important dissemination work was planned involving Brazilian Health Institutions."

What I wrote:

"In 1989, Dr. Allen C. Steere proposed to Brazilian researchers to discover LD in Brazil, knowing that Ixodid ticks were present in the country. The initial multidisciplinary research group consisted of Professors Domingos Baggio (an entomologist from the Biomedical Sciences Institute of the University of São Paulo), Paulo Yasuda (a microbiologist from the same institute) and Natalino Hajime Yoshinari (a physician from the Rheumatology Department at University of São Paulo's Medical School). At that time, LD was an unknown subject among Brazilian physicians, and therefore a plan was made to disseminate information about it among Brazilian health institutions."

But I'll change some more things, anyway. — capmo ( talk) 01:55, 2 August 2015 (UTC) reply

Well yes, they're not word-for-word identical but what was in the article amounted to close paraphrasing. Rewrites need to be more fundamental than changing the odd word. What's in the article now is fine though. Hut 8.5 10:39, 2 August 2015 (UTC) reply