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A GBD study estimated the global death rates from (33) bacterial pathogens, finding such infections contributed to one in 8 deaths (or ~7.7 million deaths), which could make it the second largest cause of death globally in 2019. [6] [3] Most pathogenic bacteria can be grown in cultures and identified by Gram stain and other methods.
multiple bacteria Bacterial meningitis: Lumbar puncture (contraindicated if there is a mass in the brain or the intracranial pressure is elevated), CT or MRI Antibiotics No multiple bacteria Bacterial pneumonia: Sputum Gram stain and culture, Chest radiography Antibiotics No List of bacterial vaginosis microbiota: Bacterial vaginosis
This is a list of bacteria that are significant in medicine. For viruses, ... List of bacteria genera; List of human diseases associated with infectious pathogens
A human pathogen is a pathogen (microbe or microorganism such as a virus, bacterium, prion, or fungus) that causes disease in humans.. The human physiological defense against common pathogens (such as Pneumocystis) is mainly the responsibility of the immune system with help by some of the body's normal microbiota.
These bacteria are normally found on the skin or in the gastrointestinal tract. [citation needed] Staphylococcus aureus is the most common cause of healthcare-associated bacteremia in North and South America and is also an important cause of community-acquired bacteremia. [14]
Bacterial plant pathogens cause leaf spots, blight, and rot in many plant species. [38] The most common bacterial pathogens for plants are Pseudomonas syringae and Ralstonia solanacearum, which cause leaf browning and other issues in potatoes, tomatoes, and bananas. [38] Brown rot fungal disease on an apple.
Streptococcus pneumoniae is the most common bacterial cause of pneumonia in all age groups except newborn infants. Streptococcus pneumoniae is a Gram-positive bacterium that often lives in the throat of people who do not have pneumonia. Other important Gram-positive causes of pneumonia are Staphylococcus aureus and Bacillus anthracis.
The most abundant vaginal microorganisms found in premenopausal women are from the genus Lactobacillus, which suppress pathogens by producing hydrogen peroxide and lactic acid. [51] [81] [82] Bacterial species composition and ratios vary depending on the stage of the menstrual cycle. [83] [84] [needs update] Ethnicity also influences vaginal flora.