Volume 29, Number 4—April 2023
Research
Extensive Spread of SARS-CoV-2 Delta Variant among Vaccinated Persons during 7-Day River Cruise, the Netherlands
Figure 2

Figure 2. Day of first symptoms for COVID-19‒conditions as part of extensive spread of SARS-CoV-2 Delta variant among vaccinated persons during 7-day river cruise, the Netherlands. Infections were later confirmed by using reverse transcription PCR. The day for first symptoms is unknown for 3 crew members. The cruise ended on day 7.
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