According to the experts there, "more infectious variants of the virus, a relaxation of social distancing, and increased mobility have contributed to the increase in cases".
Also, among the people who have gotten vaccinated in Chile, 90% of them got Sinovac (China's covid vaccine), which according to studies in Brazil has an efficacy rate of just barely 50%... So ya I can't help but think that also has a role in what's happening there.
