Tag: communicable diseases

Wuchereria bancrofti is a human parasitic roundworm that is the major cause of lymphatic filariasis. W. bancrofti carries out its lifecycle in two hosts. Humans serve as the definitive host and mosquitos as the intermediate host or vector. The microfilariae are transferred into a vector i.e., female Culex mosquito. Hence, female Culex act as a vector of Wuchereria bancrofti.

• Meningitis is the Inflammation of the brain and spinal cord membranes, typically caused by an infection.
• If the meningitis is caused by bacterium Neisseria meningitidis, it is called as Meningococcal meningitis.
• Symptoms include pain in sudden high fever, severe persistent headache, neck stiffness, nausea or vomiting, joint pains, drowsiness, confusion, etc.
• People spread meningococcal bacteria to other people by sharing respiratory and throat secretions (saliva or spit) when they cough or sneezes.
  
• Hence Meningococcal meningitis infection is transmitted chiefly from person to person.
• So, the correct answer is 'Meningococcal meningitis.

When children play barefoot in pools of dirty water and flood water, they may suffer from Leptospirosis and bilharzia. 

Disease causing microbes can spread through the air. This occurs through the little droplets thrown out by an infected person who sheezes or coughs. Another person standing close by can breathe in these droplets and the microbes infect him also. Diseases which spread like this are common cold, pneumonia and tuberculosis.

So, the correct answer is 'Option 'First line defence - Fever' and 'Third line defence - AMI'.'

Amniocentesis is used to detect hereditary and enzymatic abnormalities in the foetus. Down's syndrome cystic fibrosis and colourblindness are genetic disorders while jaundice is an infectious disease.

• 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.

• Wuchereria bancrofti is commonly called the Filarial worm as it causes Filariasis or Elephantiasis in humans. It lives in the lymph vessels of man and female Culex mosquito is its secondary host and acts as a vector. Yellow fever (YF) is an African mosquito-borne infection of primates. It is caused by a virus of the Flavivirus genus of the Flaviviridae family. In its natural habitat, it is transmitted between monkeys by forest-dwelling primatophilic Aedes mosquitoes.
• Aedes mosquitoes cause yellow fever and filarial worm cause Filariasis. 
•  Malaria, caused by Female Anopheles mosquitoes pick up the parasites by feeding on infected humans. The parasites develop in a mosquito’s body for 10 to 18 days, then is passed on when the mosquito injects saliva while feeding.
• The Oriental Rat flea (Xenopsylla cheopis), also known as the tropical rat flea, is a parasite of rodents, primarily of the genus Rattus, and is a primary vector for bubonic plague and murine typhus. This occurs when the flea has fed on an infected rodent, and then bites a human. Diarrhoea is when your bowel movements become loose or watery. The definition of diarrhoea is passing loose or watery bowel movements 3 or more times in a day (or more frequently than usual). Diarrhoea occurs when the lining of the intestine is unable to absorb fluid, or it actively secretes fluid. 
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