Because of the virus, who has to be at a bris? Do you need a minyan for a bris?
ב"ה Shalom First of all, MAZAL TOV. Mother and child should all be well. You should be Zocheh to raise him, to Torah, Chuppa and Ma'asim tovim. This is a very wise question at this difficult hour around the world. The Shulchan Aruch (Yorah De'ah 265: 6) writes explicitly that when it is possible to do the Bris with a minyan, then it should be done with a minyan and when not possible it can be done without ten. So, in these times when the corona virus is rampant, it should be done with the minimal amount of people. The Mohel and the father are most needed. I would also suggest a good photographer who keeps his distance to show the rest of the family and friends, especially those who are at high risk to this virus and are recommended to stay away from any congregation of people All the best