increasing transmissibility, like increasing tra nsmissibility, like delta increasing transmissibility, like delta and alpha variants, they are mutations which have been seen previously in other mutations which have some ability to overcome antibody immunity. what is important is at the moment until we get experimental evidence, it s very hard to tell. a single mutation tells us one thing but when they are together they could either work very well together or they might actually work negatively together, so that they might not actually be as bad as i think. until we get the experimental data, we have to assume the presence of these mutations and take the precautionary principle and be very wary. take the precautionary principle and be very wary- be very wary. anecdotally so far they report be very wary. anecdotally so far they report seem be very wary. anecdotally so far they report seem to be very wary. anecdotally so far they report seem to be - be very wary. anecdotally so fa