Streptococcal pharyngitis or “strep throat” occurs when a certain type of bacterial infection causes the tissues at the back of your mouth and throat to become inflamed, irritated and sore. It is caused by a bacteria called group A streptococcus or GAS. Unlike most other common causes of sore throat, strep throat is treated with a course of antibiotics to fight the infection and prevent rare complications. Strep throat can occur at any age but is most common among children and young adults. Infection rates peak during the late fall, winter and early spring. Strep throat is contagious and can be spread amongst individuals having close contact such as family members or those in a school or daycare setting. The most frequently reported symptoms of strep throat include throat pain, red swollen tonsils, whitish patches at the back of the throat, pain or difficulty with swallowing, swollen tender lymph nodes (glands) in the neck and fever. .pass_color_to_child_links a.u-margin-left--xs.u-margin-right--sm.u-padding-left--xs.u-padding-right--xs.u-relative.u-absolute.u-absolute--center.u-width--100.u-flex-inline.u-flex-align-self--center.u-flex-justify--between.u-serif-font-main--regular.js-wf-loaded .u-serif-font-main--regular.amp-page .u-serif-font-main--regular.u-border-radius--ellipse.u-hover-bg--black-transparent.u-hover-bg--black-transparent:hover. Content Header .feed_item_answer_user.js-wf-loaded .
I'm hoping you can help me out with a question to which I'm finding conflicting answers for. I've scoured the internet and cannot find a concrete answer. I'm hoping in posting this it will yield an interesting discussion. Doxycycline is less efficacious vs other antibiotics for strep; however, would administering it be counterproductive in the event it should not entirely eliminate the streptococcal infection? Or would it ultimately not matter as let's say it did fail to treat the infection, resistance would only have been built to tetracycline antibiotics and penicillins when later used would work as if the doxycycline had never been introduced at all? My flair says lay person; however, I'm fairly well versed in pharmacology and medicine. In other words, what I'm trying to ask is, do bacteria build cross-resistance to entirely separate classes of antibiotics? The mechanism of resistance are different between different antibiotics depends mainly in their specific way of acting. The tetracyclines act in protein synthesis at ribosomal level, but in a different way than the macrolides ( eritromycin) that give better covering on strepto pyogenes and are different from the first line therapy that are the lactamics like penicillins and cephalosporins. There are others antibiotics the lincosamins (clindamicin) and the quinolone a that work well in pyogenes and have good spectrum coverage of other germs in case of needed. Will 100mg of Doxycycline capsules twice a day orally, for 10 days be effective against a strep infection of the throat? Also, can one say, take doxycycline and then switch to Amoxicillan trihydrate right after taking doxycycline if the doxy was innefective? Optional Information: Male , Age: 24Already Tried: I am almost certain I have strep, just started doxycycline and I havent gotten any worse. Strep throat is diagnosed from your medical history, a physical examination of your throat, and a rapid strep test. The spots seem to have turned into a blister looking spot, white. Current treatment guidelines recommend that your health professional confirm strep throat with a rapid strep test and not just diagnose strep throat from your symptoms. The following symptoms are however useful in deciding when to start antibiotic therapy and wait fo rth lab results: * A recent fever of 101 °F(38.3 °C) or higher * White or yellow spots or coating on the throat or tonsils * Swollen or tender lymph nodes on the neck * Absence of signs of a cold or upper respiratory infection such as coughing or sneezing. If you have 3 out of these 4 signs, then you may be started on treatment pending culture reports. The group A streptococcus is one of the few bacteria that remains very sensitive to most antibiotics. The ability of penicillin and its related antibiotics (e.g., amoxicillin) to kill group A streptococci has not changed in more than 50 years.
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