The patient is a 45-year-old female clerk with a history of mitral valve prolapse. She was admitted with a chief complaint of intermittent fevers for 1 month and headaches for 3 weeks. Two weeks prior to developing symptoms, she had undergone a dental procedure for which she took prophylactic erythromycin. Blood cultures on admission were positive for gram positive cocci in chains. She is diagnosed with endocarditis. The cause of her infection is most likely to be: O Mycobacterium tuberculosis O Chlamydia trachomatis Streptococcus viridans (mutans) O Haemophilus influenzae O Borrelia burgdorferi

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Microbial Growth

The development of microbial growth is influenced by various natural conditions (both physical and synthetic) like pH, temperature, saltiness, gas focus (O2, CO2, and H2), nutrients, water action, and assimilation. Knowing the distinctive physical and chemical factors that influence the development and endurance of microbial growth in the climate will assist with reinforcing endeavors outfitted towards their control. These lines lessen or diminish their harmful impacts on humankind, creatures, and the climate.