Just under 10 percent of coronavirus patients admitted to hospitals between early June and late July had received only one shot of a two-dose vaccine.
Statistics Lithuania reported later on Friday that the unvaccinated accounted for 88 percent of patients currently treated in hospitals for COVID-19, and those with just one dose, for seven percent.
One percent of admissions are fully vaccinated people who received their second dose less than 14 days ago, and another four percent are those who got their second jab at least 14 days ago.
Data on new coronavirus infections show a similar pattern.
The unvaccinated account for 82 percent of all new COVID-19 cases during the period. Ten percent of people who tested positive for the virus were partially vaccinated.
Two percent of new cases are fully vaccinated people who received their second shot less than 14 days ago, and six percent are those whose vaccination was completed at least 14 days ago, according to the latest statistics.
Eighty-nine percent of COVID-19 deaths were among unvaccinated people.
A detailed analysis of vaccine efficacy is currently being prepared and is planned to be published in mid-August.