Mastitis is the inflammation of the breast that may or may not be associated with bacterial infection.
Staphylococcus aureus is the most common organism associated with mastitis.
It may occur spontaneously or during lactation. It most frequently occurs during the first 6-8 weeks postpartum, although it may occur any time during breastfeeding.
Nonpuerperal mastitis is most commonly associated with breast cyst.
Breast abscess (collection of pus in the breast) is a complication of mastitis.
Infection with Corynebacteria, antibiotic treatment for a previous episode of granulomatous mastitis, and presenting with inflammatory symptoms may increase the risk for granulomatous mastitis recurrence, according to a retrospective study from Singapore.
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Pre-exposure prophylaxis (PrEP) containing either long-acting injectable cabotegravir (CAB) or tenofovir/emtricitabine (TDF/FTC) is safe and effective for transgender women (TGW) and cisgender men who have sex with men (MSM), but CAB results in a much lower HIV incidence compared to TDF/FTC, results of the HIV Prevention Trials Network (HPTN) 083 have shown.
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