Definition:
Malaria is an acute and chronic parasitic disease transmitted by the bite of infected mosquitoes and it is confined mainly to tropical and subtropical areas.
This disease causes more disability and heavier economic burden than any parasitic disease.
Countries where malaria is endemic as of 2003 Malaria generally occurs in areas where environmental conditions allow parasite [...]
Rabies (from Latin: rabies, “madness, rage, fury.” Also known as “hydrophobia”) is a viral zoonotic neuroinvasive disease that causes acute encephalitis (inflammation of the brain) in mammals. It is most commonly caused by a bite from an infected animal, but occasionally by other forms of contact. If left untreated in humans it is almost [...]
Severe acute respiratory syndrome (SARS) is a viral respiratory illness caused by a coronavirus, called SARS-associated coronavirus (SARS-CoV). SARS was first reported in Asia in February 2003. Over the next few months, the illness spread to more than two dozen countries in North America, South America, Europe, and Asia before the SARS global outbreak [...]
Introduction:
Amoebiasis protozoal infection of human beings initially involves the colon, but may spread to soft tissues, most commonly to the liver or lungs, by contiguity or hematogenous or lymphatic dissemination.
Amoebiasis is the third leading parasitic cause of death worldwide, surpassed only by malaria and schistosomiasis. On a global basis, amoebiasis affects approximately 50 million persons [...]
Definition:
An Acute highly communicable infection characterized by fever, rashes and symptoms referable to upper respiratory tract; the eruption is preceded by about 2 days or coryza, during which stage grayish pecks (Koplik spots) may be found on the inner surface of the cheeks. A morbilliform rash appears on the 3rd or 4th day affecting face, [...]
In smallpox, lesions are commonly found on the palms and soles. In chickenpox, however, there are very few or no lesions on the palms and soles.
In smallpox, fever is present for 2 to 4 days before the rash begins, while with chickenpox, fever and rash develop at the same time.
All the pocks of the smallpox [...]
Definition:
Is an infectious and highly communicable disease characterized by marked symptom during the prodromal period and appearance of the skin eruption which progresses through the stages of macule, papule, vesicle, pustule and crust to end putting sear formation.
ETIOLOGY AND EPIDEMIOLOGY:
Variola Virus - is a large virus measuring about 200mm in diameter, which contain a [...]
Definition:
is highly contagious disease caused by herpes virus varicella, characterized by vesicular eruptions on the skin and mucous membranes usually with mild constitutional manifestations.
Etiologic Agent:
Varicella zoster virus
Source of Infection:
Secretion of respiratory tract of infective persons.
Modes of Transmission:
Direct Contact - with patient who sheds the virus from vesicles
Indirect Contact - through articles fresh soiled [...]
Leprosy, or Hansen’s disease, is a chronic infectious disease caused by the bacterium Mycobacterium leprae. Leprosy is primarily a granulomatous disease of the peripheral nerves and mucosa of the upper respiratory tract; skin lesions are the primary external symptom. Left untreated, leprosy can be progressive, causing permanent damage to the skin, nerves, limbs, and eyes. [...]
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