This news article was there in all leading newspapers recently. All of them carry  the same mistake of misrepresenting facts.
As these are two different studies published in  Lancet and AJTMH.
Both research papers can be accessed online.
The mistakes are :
1. Lancet study was done in Muzaffarpur while AZTMH study in Bangladesh.
2. Lancet study sample size was 104 whereas in AJTMH is just 14.
3. Lancet study also included pesticide sample in their study methodology.
4. In AJTMH, no acute samples were taken.
So Both research studies  are significant papers but may not be unviersally applicable.
So we should not jump to any conclusion very quickly.
Lancet study - http://www.thelancet.com/journals/langlo/article/PIIS2214-109X(17)30035-9/fulltext

AJTMH study- http://www.ajtmh.org/content/journals/10.4269/ajtmh.16-0856