Rubella (German Measles) Rubella is a contagious viral infection caused by caused by rubella virus that occurs most often in children and young adults. Rubella infection is preventable by vaccine. Rubella is also called germen measles. Rubella is a disease which have teratogenic (cause abnormal fetal development) affect. It is an acute childhood infection. Epidemiological Triad Agent – Rubella disease is caused by caused by rubella virus, RNA virus of Togavirus family. This virus is present in the nasopharynx, throat, CSF, blood and urine of a case of
Category: Communicable Diseases
Measles
Introduction – Measles (Rubeola) Measles or Rubeola is viral infection. It is highly contagious infectious disease caused by measles virus. it’s serious for small children but is easily preventable by a vaccine. Measles is caused by the measles virus, a single-stranded, enveloped RNA virus of the genus Morbillivirus within the family Paramyxoviridae. The family Paramyxoviridae consists of 3 genera- 1. Paramyxovirus – parainfluenza viruses and mumps virus 2. Pneumovirus – respiratory syncytial virus (causes infections of the lungs and respiratory tract) 3. Morbillivirus – which includes the measles virus Epidemiological Triad Agent –
Herpes Zoster
Introduction – Herpes Zoster (Shingles) Herpes zoster is also known as shingles, caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. It is an acute viral infection of the nerve cell and surrounding skin, characterized by very painful rash of blisters, but it is not life-threatening. Shingles caused by the Varicella-Zoster virus that same virus that causes chickenpox (varicella). Shingles is a viral infection that causes a painful rash with blister. The Shingles usually appears, blisters on one side of the chest or back, but it can occur anywhere on
Chicken Pox
Introduction – Chicken Pox (Varicella) Chicken pox is known as Varicella. Chicken pox is contagious infection caused by varicella-zoster virus. It causes fever and itchy red rash with fluid-filled blister. Chicken pox is highly contagious to people. Chicken pox is primary infection lesion and shingles (herpes zoster) is reactivated lesion. Chicken pox is severe than small pox. Causative Agent – Varicella-zoster virus (DNA Virus) Varicella-zoster virus cause two disease- 1. Shingles (herpes zoster) 2. Chicken pox (Varicella) Portal of entry of virus is the respiratory tract. Epidemiological Triad Chickenpox is highly
Small Pox
Smallpox is an infectious ancient disease caused by the Variola virus. Before smallpox was eradicated, it was a serious infectious and contagious; disease; it spread from one person to another. Epidemiological Triad Agent – The causative agent of smallpox is the Variola virus (DNAvirus). Host – All age group, Both sexes Environment – Overcrowded place Mode of Transmission Smallpox is an airborne disease. So this is the one of reasons smallpox was so dangerous and deadly. Airborne diseases more tend to be spread fast. 1. Droplet nuclei (aerosols formed)
communicable and non-communicable diseases
What is Communicable Diseases (CDs)? Communicable diseases are known as infectious diseases or transmissible diseases or contagious diseases. Communicable disease illnesses caused by infection, presence, and growth of pathogenic (capable of causing disease) spread from one person to another or from an animal to a person. List of Communicable Diseases (CDS) Communicable Diseases (CDs) are – What is Non – Communicable Diseases (NCDs)? Non-communicable diseases (NCDs) are not passed from person to person means diseases that can’t be directly transmitted between people. NCDs also known
