This article is about the aqueous solution. For the gas, see hydrogen chloride. Hydrochloric acid is a corrosive, strong mineral acid with many industrial uses. A colorless, highly pungent solution of hydrogen chloride (HCl) in water, when it reacts with an organic base it forms a hydrochloride salt.
Bacteria are intercellular organisms (i.e. they live in-between cells); whereas viruses are intracellular organisms (they infiltrate the host cell and live inside the cell). They change the host cell's genetic material from its normal function to producing the virus itself.
What's the difference between a bacterial and viral STD? The main difference between these two categories of sexually transmitted diseases (STDs), now more commonly referred to as sexually transmitted infections, or STIs, is what causes them â bacterial STIs are caused by bacteria and viral STIs are caused by viruses.