On rarity of re-infections within 60 days even with variant shifts.
Out of 56,831 cases, only 91 re-infections in shift from Delta to Omicron. So, 0.16%.
Out of 48,829 cases, only 5 re-infections from BA1 to BA2. Even less: 0.01%.
Mostly unvaccinated kids. Vaccinate the kids. https://t.co/m22ZvskTLI
โ zeynep tufekci (@zeynep) April 18, 2022
Iโve seen claims of frequent and rapid re-infection. That does not seem supported by the evidence.