Video talks on 16S data analysis posted.

URMAP ultra-fast read mapper posted (paper).

~20% of taxonomy annotations in SILVA and Greengenes are wrong (paper).

Taxonomy prediction is <50% accurate for 16S V4 sequences (paper).

97% OTU threshold is wrong for species, should be 99% for full-length 16S, 100% V4 (paper).

vcomp140.dll missing error

The Win32 and Win64 versions of USEARCH require a Windows dynamic link library (DLL) named vcomp140.dll.

You can install this DLL using the Microsoft installers here:

For the 32-bit exe:

https://aka.ms/vs/15/release/vc_redist.x86.exe

For the 64-bit exe:

https://aka.ms/vs/15/release/vc_redist.x64.exe