the same level of protection as others with current vaccines. “They must receive an additional dose of a COVID-19 mRNA vaccine, at least 20 days after a second dose of any of the vaccines.” Booster shots will be offered free of charge as the first doses, once the Food and Drug Administration (FDA) has completed an independent evaluation to determine their safety andnefficacy. “The estimated effectiveness of the COVID-19 vaccine against any infection, whether symptomatic or asymptomatic, decreased from 91% to 66%, once the Delta variant became predominant,” acknowledged Layden. “However, our research with frontline workers and medical personnel shows that the vaccine still provides strong protection (against COVID-19).” According to Dr. Cindy Friedman, Chief of the Travelers’ Health Branch at the CDC’s Division of Global Migration and Quarantine, the warning for all travelers is to get vaccinated regardless of the level of risk to the country they are going, although it is recommended to check travel alerts for those destinations. “Anyone who is eligible must be fully vaccinated against COVID-19 before traveling due to the Delta variant ... vaccinated people who travel must still take precautions, such as masking and social distancing,” she said. While viruses are not easily spread on flights due to the way the air is circulated and filtered on airplanes, security lines and airport terminals are crowded spaces, requiring close contact with other people. 13 If someone is vaccinated, they do not need to be tested before traveling, nor do they need to go into quarantine. To enter the United States, if someone is not vaccinated, they must show a negative COVID test taken no more than three days before the trip. Experts recommend checking local requirements for travelers who want to visit multiple states.
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