Pertussis : Highly contagious respiratory infection caused by Bordetella pertussis
Outbreaks first described in 16th century
Bordetella pertussis isolated in 1906
Estimated >300,000 deaths annually worldwide
Before the availability of pertussis vaccine in the 1940s, public health experts reported more than 200,000 cases of pertussis annually.
Since widespread use of the vaccine began, incidence has decreased more than 75% compared with the pre-vaccine era.
In 2012, the last peak year, CDC reported 48,277 cases of pertussis.
Extremely contagious-attack rate 100%
Immunity is never complete
Protection begins to wane in 3-5 yrs after vaccination
Tetanus an neurological disease characterized by an acute onset of hypertonia, painful muscular contractions (usually of the muscles of the jaw and neck), and generalized muscle spasms without other apparent medical causes.
this ppt contains all information about epidemiology of chickenpox. It is useful for students of medical field learning preventive and social medicine, Swasthavritta (Ayurved) and everyone who is interested in it
Pertussis : Highly contagious respiratory infection caused by Bordetella pertussis
Outbreaks first described in 16th century
Bordetella pertussis isolated in 1906
Estimated >300,000 deaths annually worldwide
Before the availability of pertussis vaccine in the 1940s, public health experts reported more than 200,000 cases of pertussis annually.
Since widespread use of the vaccine began, incidence has decreased more than 75% compared with the pre-vaccine era.
In 2012, the last peak year, CDC reported 48,277 cases of pertussis.
Extremely contagious-attack rate 100%
Immunity is never complete
Protection begins to wane in 3-5 yrs after vaccination
Tetanus an neurological disease characterized by an acute onset of hypertonia, painful muscular contractions (usually of the muscles of the jaw and neck), and generalized muscle spasms without other apparent medical causes.
this ppt contains all information about epidemiology of chickenpox. It is useful for students of medical field learning preventive and social medicine, Swasthavritta (Ayurved) and everyone who is interested in it
Neonatal tetanus by Dr Afuye Olubunmi OlusolaAlade Olubunmi
Neonatal tetanus is an infectious disease caused by contamination of wounds from the bacteria Clostridium tetani, or the spores they produce that live in the soil, and animal faeces.
Tetanus |Causes | Signs and symptoms| All aspects - medical discussion martinshaji
this is a brief study regarding almost all aspects of tetanus .Tetanus is a condition caused by a nerve toxin produced by the bacteria Clostridium tetani, which may also cause fatal condition too.
please comment
thank you
Tetanus is an infection characterized by a state of generalized hypertonia that manifests in the form of painful muscle spasms of the jaw and neck. The disease most commonly occurs in those who are not vaccinated or in the elderly with waning immunity. Currently, vaccination campaigns have decreased the incidence and prevalence of tetanus worldwide. The spasms from tetanus may last from minutes to weeks, with spasms starting in the face and then descending to the rest of the body. Symptoms are caused by toxins produced by the bacterium, Clostridium tetani.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
2. Tetanus is an acute disease induced by the
endotoxin of Clostridium tetani. It is clinically
characterized by muscular rigidity which persists
through out illness punctuated by painful
paroxysmal spasms of the voluntary muscles.
Especially the masseters (trismus or lock
jaw),the facial muscles (risus sardonicus), the
muscles of the back and neck (opisthotonus)
and those of the lower limbs and abdomen.
3. What is Tetanus?
The word tetanus is derived from Greek words
-“tetanos and teinein”, meaning rigid and
stretched, which describe the condition of the
muscles affected by the toxin,
tetanospasmin, produced by Clostridium
tetani .
4. Agent factors
Clostridium tetani is a gram positive, anaerobic, spore
bearing organism, the spores are terminal and give
the organism a drum stick appearance.
Spores germinate under anaerobic conditions and
produce a potent exotoxin tetanospasmin.
5. Mode of transmission
• Infection is acquired by contamination of wounds
with tetanus spores.
• The range of injuries and accidents which may lead
to tetanus comprise a trivial pin prick, skin abrasion,
puncture wounds, burns, human bites, animal bites
and sting, unsterile surgery, unsterile division of
umbilical cord, compound fractures etc….
6. Incubation Period
• It is defined as the time from injury to the first
symptom.
• The incubation period is usually 6 to 10 days.
• However, it may be as short as one day or as long as
several months.
• Long incubation is probably explained by the spores
lying dormant in the wounds. Incubation is also
prolonged by prophylaxis
8. Complications of tetanus
• Laryngospasm
• Fractures
• Hypertension
• Nosocomial infections
• Pulmonary embolism
• Aspiration
• Death
9. Pathogenesis
1. C. tetani enters body
through wound.
2. Stays in sporulated form
until anaerobic conditions
develop.
10. 3. Germinates under
anaerobic conditions and
begins to multiply and
produce tetnospasmin.
4. Tetnospasmin spreads using
blood and lymphatic system,
and binds to motor neurons.
5. Travels along the axons
to the spinal cord.
6. Binds to sites responsible for
inhibiting skeletal muscle
contraction.
11. Clinical features
Risus sardonicus: Contraction of the muscles at the angle of
mouth and frontalis
Trismus (Lock Jaw): Spasm of Masseter muscles.
Opisthotonus: Spasm of extensor of the neck, back and legs
to form a backward curvature.
Muscle spasticity
Prolonged muscular action causes sudden,
powerful, and painful contractions of muscle
groups. This is called tetany. These episodes can
cause fractures and muscle tears.
If respiratory muscles are involved, apnoea may
occur.
12.
13. Signs and SymptomsOther symptoms include:
Drooling
Excessive sweating
Fever
Hand or foot spasms
Irritability
Swallowing difficulty
Uncontrolled urination or defecation
14. Diagnosis
There are currently no blood tests that can be used
to diagnose tetanus. Diagnosis is done clinically.
15. Principle of Treatment
• 1. Neutralization of unbound toxin with Human
tetanus immunoglobulin
• 2. Prevention of further toxin production by
-Wound debridement
-Antibiotics (Metronidazole)
16. 3. Control of spasm
- Nursing in quiet environment
- avoid unnecessary stimuli
- Protecting the airway
4. Supportive care
- Adequate hydration
- Nutrition
- Treatment of secondary infection
- prevention of bed sores.
17. Prevention
Tetanus is completely preventable
by active tetanus immunization.
Immunization is thought to provide
protection for 10 years.
Begins in infancy with the DTP
series of shots. The DTP vaccine is
a "3-in-1" vaccine that protects
against diphtheria, pertussis, and
tetanus.
18. Prevention
Can be achieved by active immunization by tetanus
toxoid (5 doses – 0 day, 1 month, 6 month, 1 year, 1
year).
Older teenagers and adults who have
sustained injuries, especially puncture-type
wounds, should receive booster
immunization for tetanus if more than 10
years have passed since the last booster.
Clinical tetanus does not produce immunity to further
attacks. Therefore, even after recovery, patients must
receive a full course of tetanus toxoid.
19. Case Presentation
Name of the patient: Khushi
Father’s name: Maruthi
Age: 3 yrs.
Sex: Male
Address: Bidar Dist., Karnataka.
20. Chief complaints
Unable to open mouth since 4 days.
Stiffing of left side of the neck since 2 days.
Spasm of both hands and both leg muscles since 2
days.
21. History of present illness
Patient was asymptomatic 20 days back, then he got
injury on his left leg. He was given first aid.
But 4 days back, the parents noticed that the child
was feeling difficulty in swallowing followed by
difficulty in opening mouth and stiffening of muscles
of left side of the neck.
Then he was taken to Bidar institute of medical
sciences in Bidar, from where he was referred to Sir
Ronald Ross institute for tropical and communicable
diseases, Hyderabad.
22. Past medical history
Patient had normally achieved his developmental
milestones.
No H/O koch’s disease
No H/O similar conditions
23. Family History
Both the parents are healthy and alive.
He has two sisters, one elder and one younger, and
both are healthy and alive.
24. Differential Diagnosis
• Strychnine poisoning is the only condition that truly
mimics tetanus. However, a number of conditions
(eg, dental or other local infections, hysteria,
neoplasms, and encephalitis) may cause trismus, and
these must be differentiated these conditions from
tetanus
Usually a puncture wound or laceration, nails
Dead tissue
Extremely potent neurotoxin
Only creates small immune response so not enough antibodies for immunity and not usually any inflamation of the wound