Disinfection
This may or may not be what you had in mind, but the first line of defense is the skin, which keeps out pathogenic organisms. Then there is the immune system.
Patchouli oil was investigated for antimicrobial activity against a panel of ten human pathogenic bacteria and eight human pathogenic fungi. It showed a significant antimicrobial activity against all tested organisms compared to standard antibiotic Ampicillin. However, patchouli is more active against Gram positive than Gram negative bacteria.
Penicillin is NOT effective against gram positive and negative cocci and gram positive bacilli only. it is not effective against rest of the organisms.
penicillins
Non-pathogenic organisms benefit humans by helping with digestion, producing essential nutrients like vitamin K, and supporting the immune system by competing with harmful pathogens for resources. Additionally, non-pathogenic organisms play important roles in soil health, recycling nutrients, and biodegradation of waste materials.
Free chlorine is effective against all pathogenic contaminants when added to water in high concentrations and provided a long enough contact time.However, at practical concentrations free chlorine is ineffective in dis-activating protozoa, particularly Cryptosporidium, Parvum oocysts and Giardia lamblia cysts.
kills any pathogenic bacteria in your body
Disinfectants are effective against a wide range of microorganisms, including bacteria, viruses, and fungi. They work by disrupting the cell membranes, proteins, and DNA/RNA of these organisms, leading to their inactivation and preventing their growth and reproduction.
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Resident normal flora compete with pathogens for nutrients and space, thereby preventing pathogens from colonizing and causing infections. Additionally, normal flora can produce substances that inhibit the growth of pathogens or modulate the immune response to promote defense against invading pathogenic organisms.
electric and ice are effective against flying
Metronidazole is not effective against the step throat.