It is not a crazy question at all. In fact it has a variety of answers: I will summarize with a “no,” a “yes,” and a “no.”
1. No, exposure of others to Covid-19 may cause them to become specifically immune to that virus, but it will not cause us to also become specfically immune unless we are similarly exposed to virus components themselves, not just the persons involved.
2. Yes, the fact that people near us are in distress because they are sick will probably cause us, as we too are distressed by the situation, to secrete stress hormone and related responses that will somewhat alter our immune system, for example by raising the count of neutrophilic white cells in our blood somewhat.
3. No, that particular kind of nonspecific change in our stress hormones and related effects on our immune calls is not likely to prevent Covid-19 infection in us.
It is not a crazy question at all. In fact it has a variety of answers: I will summarize with a “no,” a “yes,” and a “no.”
1. No, exposure of others to Covid-19 may cause them to become specifically immune to that virus, but it will not cause us to also become specfically immune unless we are similarly exposed to virus components themselves, not just the persons involved.
2. Yes, the fact that people near us are in distress because they are sick will probably cause us, as we too are distressed by the situation, to secrete stress hormone and related responses that will somewhat alter our immune system, for example by raising the count of neutrophilic white cells in our blood somewhat.
3. No, that particular kind of nonspecific change in our stress hormones and related effects on our immune calls is not likely to prevent Covid-19 infection in us.