institute of communicable diseases is that we are seeing an increase in reinfection, so there is an early analysis from one of our centers called seseema that looked at the ratio of reinfections to new infections and what we re seeing with omicron is an increase in reinfections. the ratio is 2.4, higher than what we saw in our previous waves. now, we expect some increase because we ve had more past infections now, but this increase is way out of range, so that means it looks like past natural infection does not seem to be protecting to any significant extent from omicron infection. on the vaccine front, we really don t have data yet. that s still to come. we are seeing breakthrough infections in vaccinated individuals, but so far, they ve been mild. but i don t want to make too much of that, still too few