Disease Causative Agents

Tetanus is also called as lockjaw. It is a disease caused by bacterium Clostridium tetani. It affects the nerves that control the muscle movements. Symptoms include difficulty swallowing, difficulty breathing, muscle spasm. Polio is a contagious disease caused by a poliovirus. It attacks the nervous system. It mainly affects the small children. Filaria is a parasitic disease caused by nematode parasites of the order Filariidae. It spreads by mosquitoes and black flies. Malaria is a disease is caused by Plasmodium protozoa. It is transmitted through the bite of the Anopheles mosquito. Symptoms include fever, aches, nausea.

Pneumonia is a lung disease caused by bacteria Streptococcus pneumoniae. It causes inflammation of alveoli of lungs. Symptoms include dry cough, chest pain, fever, difficulty breathing.

Abortion is the method of ending the pregnancy by removal of either embryo or foetus. Chlamydia is a sexually transmitted infection. Chlamydia may result into Pelvic Inflammatory Disease (PID). It can lead to serious consequences like infertility, ectopic pregnancy and even abortion.

Trachoma is an infectious disease caused by bacterium Chlamydia trachomatis. It results in the roughening of the inner surface of the eyelids. The symptoms include pain in the eyes, itching and irritation in the eyes, blindness. It is a contagious disease.

Anthrax is an infectious disease caused by bacterium Bacillus anthracis. It mainly affects rudiments like cattle, buffaloes, horses, sheep. It rarely occurs in humans. Symptoms include sore throat, mild fever, fatigue, muscle aches.

Cholera is caused by Vibrio cholerae and tetanus is caused by Clostridium tetani. Both are bacterial diseases.

Gas gangrene is caused by the Clostridium perfringens bacterium. This produces gas in tissues in gangrene. It results in the swelling.  The skin turns pale to brownish-red. 

Food poisoning or botulism is caused by Clostridium botulinum. It is an anaerobic bacterium. The bacterium infects canned food. The poisoning is accompanied by diarrhoea and vomiting. Common food poisoning is caused by Staphylococcus aureus.

Tetanus is a bacterial disease. It is also known as Lock Jaw. Tetanus is caused by Clostridium tetani. It is a bacilus bacteria.
Polio is a viral disease. It is also known as poliomylelitis. It is caused by polio virus. The virus spreads from person to person.
Filaria is a parasitic diseases which is transmitted by mosquito and flies. It is caused by Wucheria bancrofti and Wucheria malayi.
Malaria is a protozoan disease. It is caused by a plasmodium. It is transmitted by female Anopheles mosquito.

Trachoma is a bacterial infection. It is caused by bacteria Chlamydia trachomatis. It is an eye infection. It causes itching and irritation of eyes. In severe condition, it may result in blindness.

Anthrax is a bacterial disease caused by the bacterium Bacillus anthracis. It can occur in four forms: skin, lungs, intestinal, and injection. It commonly affects grazing animals like sheep, pigs, cattle, horses, goats. However, it rarely affects humans as well. Tick fever is a disease spread by the bite of an infected tick. It is caused by spirochete species like Borelliahermsii, Borelliaparkerii. Symptoms include fever, headache, muscles pains, rash. Coccidiosis is a disease of the intestinal tract of animals caused by coccidian protozoa. Symptoms include droopiness, loss of appetite, pale combs and wattles, blood or mucus in the feces, diarrhea, dehydration. Rinderpest is a disease of cattle caused by a paramyxovirus. Symptoms include fever, dysentery, inflammation of the mucous membranes.

C.Hay fever is an allergic disorder characterized by an exaggerated immune response to pollen grains and other substance. It is also called allergic rhinitis which affecting the nose. Symptoms generally have runny nose, itchy eyes,mouth,skin or sneezing 

• House flies are not the neatest of insects. They visit such places as dumps, sewers, and garbage heaps. They feed on faecal matter, discharges from wounds and sores, sputum, and all sorts of moist decaying matter such as spoiled fish, eggs and meat. House flies are strongly suspected of transmitting at least 65 diseases to humans, including typhoid fever, dysentery, cholera, gangrene, poliomyelitis, yaws, anthrax, tularemia, leprosy and tuberculosis. Flies regurgitate and excrete wherever they come to rest and thereby mechanically transmit disease organisms.
• Pertussis, also known as whooping cough, is a highly contagious respiratory disease. It is caused by the bacterium Bordetella pertussis. Pertussis is known for uncontrollable, violent coughing which often makes it hard to breathe.
• Pertussis, also known as whooping cough, is a highly contagious respiratory disease. It is caused by the bacterium Bordetella pertussis. Pertussis is known for uncontrollable, violent coughing which often makes it hard to breathe.

The common cold is an infectious disease caused by rhinovirus. It causes inflammation of upper respiratory tract.