What are the five major categories of multidrug-resistant bacteria?

　　There is no such thing as a classification of "five major types" of multidrug-resistant organisms (MDROs). Multidrug-resistant organisms refer to bacteria that are simultaneously resistant to three or more classes of antimicrobial agents used in clinical practice. Commonly encountered MDROs include carbapenem-resistant Enterobacterales (CRE), methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococci (VRE), carbapenem-resistant Acinetobacter baumannii (CRAB), and carbapenem-resistant Pseudomonas aeruginosa (CRPA). Patients experiencing discomfort symptoms should seek medical attention promptly. Detailed explanations are as follows:

　　1. Carbapenem-resistant Enterobacterales (CRE): CRE are resistant to carbapenem antibiotics. Common species include Escherichia coli and Klebsiella pneumoniae.

　　2. Methicillin-resistant Staphylococcus aureus (MRSA): MRSA are resistant to methicillin and other β-lactam antibiotics, and represent one of the most common multidrug-resistant pathogens encountered in clinical settings.

　　3. Vancomycin-resistant Enterococci (VRE): VRE can cause various infections and exhibit resistance to multiple antibiotics, making treatment difficult, prolonging therapy duration, and increasing patient mortality rates.

　　4. Carbapenem-resistant Acinetobacter baumannii (CRAB): CRAB are resistant to carbapenem antibiotics and are important causative agents of hospital-acquired infections.

　　5. Carbapenem-resistant Pseudomonas aeruginosa (CRPA): CRPA are resistant to carbapenem antibiotics and can cause severe respiratory tract infections, urinary tract infections, and other serious conditions.

　　In daily life, it is important to maintain a balanced diet and consume adequate vitamins and proteins, such as those found in broccoli and eggs, which may help strengthen the body's immune system and reduce the risk of bacterial infections.