Are lentiviruses, a family of retrovirus that contains two single-stranded RNA.
HUMAN IMMUNODEFICIENCY VIRUS
It attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases.
HUMAN IMMUNODEFICIENCY VIRUS
It causes Acquired Immunodeficiency Syndrome (AIDS).
HUMAN IMMUNODEFICIENCY VIRUS
STAGES OF HIV
Patients have large amount of HIV in their blood which are very contagious
Acute HIV Infection
STAGES OF HIV
Flu-like symptoms
Acute HIV Infection
STAGES OF HIV
Asymptomatic HIV infection or Clinical latency
Chronic HIV Infection
STAGES OF HIV
HIV is still active and continues to reproduce in the body
Chronic HIV Infection
STAGES OF HIV
Can last for a decade or longer or may progress faster.
Chronic HIV Infection
STAGES OF HIV
Most severe stage of HIV infection
Acquired Immunodeficiency Syndrome (AIDS)
STAGES OF HIV: Acquired Immunodeficiency Syndrome (AIDS)
person with HIV is considered to have progressed to AIDS when:
The CD4 cell count ____
Presence of ___ ___ ___ regardless of the CD4 cell count
<200 cells/mcL
AIDS indicator conditions
STAGES OF HIV: Acquired Immunodeficiency Syndrome (AIDS)
AIDS indicator conditions: (10) 3C 2H KLM PT
Candidiasis
Cervical cancer
Cytomegalovirus
Herpes simplex virus
Histoplasmosis
Kaposi sarcoma
Lymphoma
Mycobacterium tuberculosis
Pneumocystis jiroveci pneumonia (PCP)
Toxoplasmosis
STAGES OF HIV: Acquired Immunodeficiency Syndrome (AIDS)
Px with AIDS have damaged immune systems = inc. number of opportunistic infections. T or f?
T
STAGES OF HIV: Acquired Immunodeficiency Syndrome (AIDS)
most common life-threatening opportunistic infection in patients with AIDS.
Pneumocystis jiroveci pneumonia (PCP)
STAGES OF HIV: Acquired Immunodeficiency Syndrome (AIDS)
Pneumocystis jiroveci pneumonia (PCP)
Prophylaxis & Treatment:
trimethoprim-sulfamethoxazole
3 TYPES OF CONTACT: SPP
Sexual Intercourse
Parenteral
Perinatal
3 TYPES OF CONTACT:
(most common)
Anal & vaginal course
3 TYPES OF CONTACT:
___ ___ to reduce the risk of transmission (most common)
Condom use
3 TYPES OF CONTACT:
Sharing of needles is common
Parenteral
3 TYPES OF CONTACT:
Blood transfusion
Parenteral
3 TYPES OF CONTACT:
Vertical transmission
Perinatal
3 TYPES OF CONTACT:
Most common cause of pediatric HIV infection
Perinatal
HIV is NOT transmitted through casual contact. T or F?
T
Etiology
2 CLASSIFICATION OF HIV
HIV-1
HIV-2
2 CLASSIFICATION OF HIV
More globally expanded and virulent
HIV-1
2 CLASSIFICATION OF HIV
Origination in Central Africa
HIV-1
2 CLASSIFICATION OF HIV
Less virulent/less pathogenic
HIV-2
2 CLASSIFICATION OF HIV
Originated in West Africa
HIV-2
EPIDEMIOLOGY
First official cases of AIDS epidemic
1891
EPIDEMIOLOGY
First official cases of AIDS epidemic:
__ cases of Pneumocystis jiroveci pneumonia (PCP) in homosexual men in the USA.
5
EPIDEMIOLOGY
First official cases of AIDS epidemic:
Other conditions were reported: ___ ___
Kaposi’s sarcoma
CLINICAL PRESENTATION
Primary HIV infections might vary, but patients may experience viral syndrome or mononucleosis-like sickness, which includes ___, ___, and ___. Symptoms may last two weeks.
fever, pharyngitis, adenopathy
CLINICAL PRESENTATION
The majority of children born with HIV are ___. On clinical examination they exhibit:
asymptomatic
CLINICAL PRESENTATION
The majority of children born with HIV are asymptomatic. On clinical examination, they exhibit: PHYSICAL SIGNS (6) LHS 2FW
Lymphadenopathy
Hepatomegaly
Splenomegaly
Failure to thrive
Weight loss or unexplained low birth weight
Fever of unclear cause
CLINICAL PRESENTATION
The majority of children born with HIV are asymptomatic. On clinical examination, they exhibit: LABORATORY RESULTS (4) HAAA
Hypergammaglobulinemia
Anaemia
Altered mononuclear cell activity
Altered t-cell subset ratios
CLINICAL PRESENTATION OF PRIMARY HIV INFECTION IN ADULTS
SYMPTOMS (11) FSF WMM DNL NA
Fever
Sore throat
Fatigue
Weight Loss
Myalgia
Maculopapular rash in the trunk
Diarrhea
Nausea and vomiting
Lymphadenopathy
Night sweats
Aseptic meningitis
CLINICAL PRESENTATION OF PRIMARY HIV INFECTION IN ADULTS
Aseptic meningitis (4) FHPS
Fever
Headaches
Photophobia
Stiff neck
CLINICAL PRESENTATION OF PRIMARY HIV INFECTION IN ADULTS
OTHERS (2) HP
High Viral Load
Persistent decrease in CD4 lymphocytes
DIAGNOSIS (5) EW PGV
ENZYME-LINKED IMMUNOSORBENT ASSAY (ELISA)
WESTERN BLOT TEST
POLYMERASE CHAIN REACTION (PCR)
GENETIC TESTING
VIRAL LOAD TEST
DIAGNOSIS
Most common HIV test use blood samples to detect HIV infeciton. It tests a patient's blood sample for antibodies