Question

Antigen Epitope LD50 Infective dote Mutualism Nosocomial infection Epidemiology Scabies Conjugated vaccine Antibody groups and their functions List antivirals (5-10) Name 5 tick-borne diseases in US What are the 4 characteristics of bacteria that allow them to evolve faster than other organisms Give 2 examples of selective toxicity What are 6 targets of antimicrobial therapy in bacteria What are the top 5 greatest microbial killers in history

Answer 1

So many questions can’t be asked in a single post. I will answer the first four. You can post the rest again for answers.

An antigen is a molecule (lipid, protein, polysaccharide) which has the property of both infection and foreignness to the host. This means it is considered something not belonging to the system of the host and thus attacked by the host.

Epitope are the regions (specific sequences) on the antigen molecule which are recognised by an antibody.

LD50 stands for lethal dose of a drug which can cause neutralization (killing in a sense) of 50% of its target.

Infective dose is a term used to decide on the amount of a vaccine to be administered, which is anough to cause infection such that the body produces immune response against it and is prepared with memory cells on similar subsequent exposure.