After repeated exposure to the original strain, people's immune systems tended to recognize and respond more strongly to it than to the half of the new booster dose that was brand new.

Source: https://www.dailyherald.com/business/20230615/fda-advisers-endorse-updating-covid-vaccines-to-target-latest-omicron-strain

Anyone who has recently had COVID-19 is still eligible for a first, second or booster dose but should wait until they are out of isolation and symptoms have resolved.

Source: https://www.simcoereformer.ca/news/local-news/covid-19-hospitalizations-increase-in-haldimand-norfolk-4

Around a third of people in England aged 50 and over still have not received the latest booster dose of coronavirus vaccine, with overall take-up estimated to be 64.3%, according to UKHSA data.

Source: https://www.burnhamandhighbridgeweeklynews.co.uk/news/national/23248821.uk-covid-19-infections-may-peaked-christmas-wave/?ref=rss

More than 23.8 million Filipinos have received their first booster shot, while 4.4 million received their second booster dose.

Source: https://newsinfo.inquirer.net/1755447/doh-2nd-covid-19-booster-shot-will-soon-be-available-to-general-public

"Studies have shown that a booster dose of the bivalent vaccine enhances protection and provides a high level of protection against severe COVID-19 illnesses, including that caused by the circulating variants."

Source: https://www.channelnewsasia.com/singapore/less-third-children-5-11-singapore-minimum-protection-covid-19-moh-3454046?cid=cna_flip_070214

The booster dose improves the existing immunity and quickly increases the antibody levels.

Source: https://indianexpress.com/article/health-wellness/covid-19-surge-co-morbidities-avoiding-hospitalisation-8543538/

The latest recommendations come with a unique phrasing: Eligible people “may” get the second bivalent booster dose, rather than “should” get it.

Source: https://vtdigger.org/2023/04/27/new-covid-19-booster-recommendations-roll-out-in-vermont/

The researchers found that the lymphadenopathy resolved at a mean of 102 days after the booster dose and at 84 days after initial ultrasound.

Source: https://www.gjsentinel.com/lifestyle/health_and_wellness/axillary-lymphadenopathy-resolves-at-mean-102-days-after-covid-19-booster/article_dbaed1b8-4d85-5d2b-8c54-610ceb545a68.html

This states that “those healthy aged 18-49 years who have availed of the offer of a second booster dose additional booster vaccines are not routinely recommended” but does not offer more detail.

Source: https://www.thejournal.ie/covid-booster-ireland-18-to-49-6234200-Dec2023/

To book a booster dose on the Aarogya Setu app, click on the icon on the top of your screen that says Vaccination.

Source: https://indianexpress.com/article/technology/tech-news-technology/how-to-book-covid-19-booster-dose-aarogya-setu-8356717/