It is transmitted in poor hygienic conditions from person to person. Enterococcus faecalis:Įnterococcus faecalis is a gram positive, facultative anaerobic bacilli. As it is a spore forming bacteria the spore can be found everywhere. It causes jaw pain, muscle pain and difficulty in swallowing. Clostridium tetani:Ĭlostridium tetani is an anaerobic gram positive rod shaped bacteria. It may cause fever, diarrhea and stomach-ache. It is transmitted through contaminated and unprocessed or raw food items like meat, poultry. Clostridium perfingens:Ĭlostridium perfingens is a gram positive, anaerobic bacilli. It causes lyme disease which include skin complications. Borrelia garinii:īorrelia garinii is a gram negative spirochete and can be found in sea bird ticks. It usually non- pathogenic but it can be infectious if it enters the blood stream while surgeries, trauma. It is commonly present at human colonal parts. Bacteroids fragilis:īacteroids fragilis is a gram negative anaerobic bacteria. It is usually seen on the skin and mouth parts. It infects commonly lungs, liver, neck parts. It causes actinomycosis which may results in sinus problem. Actinomyces israelii:Īctinomyces israelii is a gram positive bacilli. In infants the symptoms include fever, poor feeding and faint or dullness. It commonly infects the adults and infants too. On dry food items like milk powder, herbal teas etc. Coronobacter sakazakii:Ĭoronobacter sakazakii is a gram negative bacilli. It is transmitted through the consumption of sea water. It causes diarrhoea, vomiting, nausea, fever, stomach pain. It is most commonly found in sea water, sea food. Vibrio parahaemolyticus is gram negative, facultative anaerobic bacilli. The diseases caused by this are intrauterine infections, meningitis and sometimes there is a chance of abortions in pregnant women. It grows mostly in wet environment even under refrigeration. Listeria monocytogenes is a facultative anaerobic bacterium. It causes diarrhoea in humans and transmitted through contaminated food or raw food items like meat, poultry items. Camphylobacter jejuni:Ĭamphylobacter jejuni is a microaerophilic and gram negative bacterium. It causes typhoid fever and usually transmitted through contaminated food (raw meat, egg) and water. Salmonella entrica is a gram negative, facultative anaerobic bacilli. It is transmitted by the bites of animals like rats, mouse, squirrels which are infected earlier. It causes plague disease in humans and most commonly in animals. Yersinia pestis is a non-spore forming bacterium. It causes Anthrax disease, the symptoms include fever, sore throat, nausea, diarrhea and headache. It is transmitted from soil/ drainage / diseased animals but not through the man to man contact. Bacillus anthrax:īacillus anthrax is gram positive bacilli (rod shaped). It causes cholera in humans which results in diarrhea. It is transmitted through the contaminated food. Vibrio cholerae is a facultative anaerobic gram negative comma shaped bacteria. The usual source of transmission of this disease is contaminated food. It produces toxins and causes botulism it is a serious disease in humans. Clostridium botulinum:Ĭlostridium botulinum is an anaerobic gram positive rod shaped bacteria. It can be cured by using antibiotics like penicillin. It is commonly known as normal flora which is present on skin. Staphylococcus aureus is a gram positive round shaped bacteria. It can cause pneumonia with the symptoms like throat pain, fever and headache, red and swollen tonsils. The main source of transmission of it is nasal drops of an infected person. Streptococcus pneumonia is a gram positive aero tolerant anaerobic spherical bacteria. It is easily treated in early stages but in later stage the prolonged treatment is required as it develops multidrug resistance. Tuberculosis is caused by mycobacterium species. Mycobacterium tuberculosis is an aerobic gram positive rod shaped bacteria. It can be cured by using antibiotics like sulfamethoxazole or trimethoxazole. This is transmitted from contaminated food. They cause urimary tract infections, bacteremia, cholecystitis, vomiting, diarrhea, stomach clumps. Most of the E.coli are not pathogenic but some of them are more pathogenic. Pathogenic bacteria examples Escherichia Coli:Į.Coli is a gram negative facultative anaerobic colini form bacteria. In nature many types of pathogenic bacteria are there. The pathogenic bacteria can cause many diseases in humans. Pathogenic bacteria cause diseases in humans as well as in animals.
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