hi Somerando - here is the link again: https://wwwnc.cdc.gov/eid/404.html?aspxe.... It definitely works for me now, but here is the abstract, so you can find if if there is a problem:

CDC Centers for Disease Control and Prevention
Emerging Infectious Diseases

Volume 27, Number 10October 2021

Dispatch

Breakthrough Infections of SARS-CoV-2 Gamma Variant in Fully Vaccinated Gold Miners, French Guiana, 2021
Abstract
An outbreak of severe acute respiratory syndrome coronavirus 2 caused by the Gamma variant of concern infected 24/44 (55%) employees of a gold mine in French Guiana (87% symptomatic, no severe forms). The attack rate was 60% (15/25) among fully vaccinated miners and 75% (3/4) among unvaccinated miners without a history of infection.