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Colorized scanning electron micrograph of a human neutrophil ingesting MRSA. Methicillin-resistant Staphylococcus aureus (MRSA) is a group of gram-positive bacteria that are genetically distinct from other strains of Staphylococcus aureus. MRSA is responsible for several difficult-to-treat infections in humans.
Methicillin was the first antibiotic in this class to be used (it was introduced in 1959), but only two years later, the first case of methicillin-resistant Staphylococcus aureus (MRSA) was reported in England. [114]
Methicillin was developed by Beecham in 1959. [4] It was previously used to treat infections caused by susceptible gram-positive bacteria, in particular, penicillinase -producing organisms such as Staphylococcus aureus that would otherwise be resistant to most penicillins.
It is necessary to develop new antibiotics over time since the selection of resistant bacteria cannot be prevented completely. This means with every application of a specific antibiotic, the survival of a few bacteria which already have a resistance gene against the substance is promoted, and the concerning bacterial population amplifies.
Because of the prevalence of S. aureus within the general population and significant number of severe infections caused by this bacteria, decolonization protocols have been implemented in many hospital networks to decrease MRSA infections. [4] By using disinfectants over an extended period of time, decolonization decreases or minimizes patient ...
Move over, Wordle, Connections and Mini Crossword—there's a new NYT word game in town! The New York Times' recent game, "Strands," is becoming more and more popular as another daily activity ...
The NBA on Tuesday unveiled a new format for the 2025 All-Star Game scheduled for Feb. 16 in San Francisco. To generate a more competitive game, this season’s All-Star Game will feature a mini ...
Over time, most of the strains of bacteria and infections present will be the type resistant to the antimicrobial agent being used to treat them, making this agent now ineffective to defeat most microbes. With the increased use of antimicrobial agents, there is a speeding up of this natural process. [29]