There are plastic covers you can place on cameras. The nurse is helping by sharing someone's story which is in line with their goals of care. Your comment isn't helpful and based upon your other comments, your contributions don't really fit on hackernews.
Just posting a link without commentary makes it hard to know what point you're trying to make. The CDC related vaccine safety tracker shows no difference in baseline miscarriage rates so I don't think that link is very accurate.
This comment isn't helpful. Could you support it with instances of when they took action versus when they didn't? Currently, you only posted your opinion.
The problem is the confirmed cases are the primary part of determining efficacy. The people who do not get the virus have a smaller impact on that statistic at higher numbers. EDIT: User runamok explains it well.