
Explain how communicable diseases arise when infectious agents or their products transmit between people, animals, or from environment to people or animals, with examples such as malaria, filariasis, and dengue.
Describe chickenpox as an acute, highly infectious viral disease caused by varicella zoster virus, with signs including fever, skin rash, cough, fatigue, and sore throat.
Understand how chickenpox transmits through respiratory routes and skin lesions, with transplacental risk, an incubation period of 14–16 days, pre-eruptive and eruptive stages, and a two-day-to-five-day communicability window.
Explore the pre-eruptive and eruptive stages of chickenpox, detailing onset duration, fever, malaise, and a centripetal, symmetrical vesicular rash progressing from macule to crust with pleomorphism.
Explain chickenpox complications, including hemorrhage, pneumonia, encephalitis, acute cerebellar ataxia, Ray syndrome, and fetal risk, and describe control measures such as isolation and varicella zoster immunoglobulin within 72 hours.
Dengue is a flavivirus with four antigenic types, transmitted by female Aedes aegypti mosquitoes with white spots, through a human–mosquito cycle, with a three to ten day incubation.
Describe the clinical importance of dengue virus, including classical dengue fever and dengue hemorrhagic fever, their biphasic fever pattern, sequential serotype infection, and the self-limiting nature.
Diagnose dengue with tourniquet test, imaging or liver enzymes, CBC and NS1; prevent with sleeping impregnated nets and topical repellents, and breeding-site control; provide supportive treatment, no vaccine.
Diphtheria is an acute infection of nose and throat caused by Corynebacterium diphtheriae, with four types gravis, mitis, medius, and minimus, spreading via nasopharyngeal secretions and fomites for 14–28 days.
Learn how diphtheria transmits through respiratory droplets, skin lesions, and fomites, with humans as the reservoir, and review four types and incubation (2–6 days) with sore throat and breathing problems.
Explore pharyngeal diphtheria with grayish membranes that may be unilateral or bilateral, plus laryngeal diphtheria with hoarseness and stridor, and cutaneous diphtheria with tropical ulcers and nasal membrane involvement.
Diagnose diphtheria using Schick test and antitoxin measurements, with rapid isolation and carrier management. Treat with diphtheria antitoxin and antibiotics, and emphasize vaccination and hygiene to prevent spread.
This course provides complete detail about communicable diseases such as diphtheria , chicken pox and dengue. All study material of the course is taken from certified Medical books and researches. This course is beneficial for aspiring medical students , pharmacy students and public health workers. This course teaches in detail about disease, its etiological agent, Its transmission, spread, source of infection, epidemiology, Types, Communicability, reservoir, Incubation, portal of entry, Signs, Symptoms, Diagnosis, Control, Prevention, Treatment and vaccine. All information is certified and explained in easier words by certified Doctor. Visuals are used for better understanding for students as visual memory is most impactful. Easier vocab is used for difficult medical terms. Any person with basic English understanding and basic medical science knowledge can quite comfortably grasp the Concepts and details. A lot of effort is put into Audio quality of the lecture so its made sure that the student learning is not effected in any way at all. Public Health workers must take this course as this course focuses on control, diagnosis and prevention of disease and the best way to eradicate a Communicable disease is to stop its spread.
Conclusion : Overall this lecture deals with every aspect of Diseases( Diphtheria , Chickenpox and Dengue)