The Navajo Nation has lifted a strict weekend curfew that has been in place for months to expand COVID-19 vaccination efforts. Like much of the country, the Navajo Nation had its worst coronavirus surge at the end of last year. But now, more than 1 in 5 …The Navajo Nation has lifted a strict weekend curfew that has been in place for months to expand COVID-19 vaccination efforts. Like much of the country, the Navajo Nation had its worst coronavirus surge at the end of last year. But now, more than 1 in 5 …