what are monoclonal antibodies - #7120

I’ve been hearing a lot about monoclonal antibody treatments, especially during the pandemic, but I still don’t fully understand what they are. What are monoclonal antibodies, and how do they actually work in the body? Are they the same as vaccines, or do they work differently? I read that monoclonal antibodies are used to treat certain diseases like COVID-19, cancer, and autoimmune disorders. But how do they target specific illnesses? Do they work like natural antibodies that our body makes, or are they completely synthetic? Also, if monoclonal antibodies can help fight infections, why don’t we use them for things like the flu or the common cold? Are they only made for serious conditions, or could they be developed for everyday illnesses too? I saw that some people receive monoclonal antibodies through IV infusions. Does that mean they only work for people who are already sick? Can they also be used to prevent disease, or are they strictly for treatment? Another thing I’m wondering about is side effects. Are monoclonal antibodies safer than traditional medications, or do they have serious risks? I read that some people can have allergic reactions—how common is that? If someone receives monoclonal antibodies, does the protection last long-term, or does it wear off quickly? Do they boost the immune system, or do they just act as temporary protection? For those who have taken monoclonal antibodies for an illness, did they actually help you recover faster? Were there any side effects? I’m curious if they’re really as effective as people say.