"In Peru, however, a larger wave was recorded in 2019 . From May 20 to July 27, 683 suspected or confirmed GBS cases were identified, according to a 2020 analysis presented in the journal Emerging Infectious Diseases. In French Polynesia, a surge in GBS cases followed a wave of Zika infections in 2013/14 . "We currently have the disease under control," Peru's Health Minister Cesar Vasquez told reporters. Since there has been a significant increase in cases in recent weeks, it has become necessary to act. There was initially no information on the reasons for the increase. Infections with Campylobacter jejuni were considered the most likely cause of the major outbreak in 2019."
This usually happens right before a big "viral epidemic".
Also happened before Zika virus and Covid-19 outbreaks .
Source : https://www.indonewyork.com/m/breaking/health-emergency-accumulation-of-the-nervous-disease-guillain-barr-h91116.html