The FDA said the test offers a private and quick testing option, along with streamlined treatment, if needed.
Most of the newly affected Finnish farms raised foxes, but some also produced raccoon dogs.
The investigational oral antibiotic zoliflodacin would be the first new treatment for gonorrhea in decades.
The vaccine targets outer membrane vesicles that are common to both Neisseria meningitidis and Neisseria gonorrhoeae.
Gonorrhea infections in China are showing decreasing susceptibility to ceftriaxone along with high levels of resistance to other antibiotics.
The designation means that the NgG vaccine, which is in a phase 2 trial, will receive expedited review by FDA officials.
Analysis of Neisseria gonorrhoeae isolates from 3 African countries finds high resistance to ciprofloxacin and emerging resistance determinants for azithromycin.
The trial is evaluating the efficacy of oral zoliflodacin compared with the standard regimen of ceftriaxone plus azithromycin.
State health officials say the strain, which had reduced susceptibility to the last remaining recommended antibiotic treatment, is a serious public health concern.
International travel may play a critical role in the spread of multidrug-resistant (MDR) sexually transmitted infections (STIs), according to a study published late last week in Travel Medicine and Infectious Disease.