Unit 3 - Communicable Diseases Part 2 Flashcards
are infections that have newly appeared in a population or have existed previously but are rapidly increasing in incidence or geographic range.
Emerging and Re-emerging Infectious Diseases (EIDs)
3 examples of EIDs
HIV/AIDS, vCJD, SARS
2 examples reemerging diseases
Chikungunya, Influenza
diseases that reappear after they have been on a significant decline.
reemerging diseases
may happen because of a breakdown in public health measures for diseases that were once under control.
reemergence
appen when new strains of known disease- causing organisms appear.
reemergence
t/f: Human behavior affects reemergence
TRUE
are spread predominantly by unprotected sexual contact. Some STIs can also be transmitted during pregnancy, childbirth an
Sexually transmitted infections (STIs)
4 ways STIs can also be transmitted
pregnancy, childbirth, breastfeeding, blood
serious consequences of untreated STI
neurological, cardiovascular, infertility, ectopic pregnancy, stillbirths, HIV
STI are associated with __,__, affecting quality of life
stigma, and domestic violence
t/f: majority of STIs have no symptoms
TRUE
symptoms of STIs
vaginal or urethral discharge, genital ulcer, lower abdominal pain
most common and curable STIs are (4)
trichomonas, chlamydia, gonorrhea, syphilis
rapidly increasing ____ is a growing threat for untreatable gonorrhoea
antimicrobial resistance
modes of transmission of STDs
More easily: mucous membranes of penis, vulva, rectum, urinary tract
Less often: mouth, throat, respiratory tract, and eyes
primary source of infection of STDs in asceding order
- venereal fluids
- saliva
- mucosal or skin (penis)
- feces
- urine
- sweat
4 risk factors of STDs
- Increased number of partners
- inconsistent condom use
- breaks in skin
- severity of your partner’s infection (as measured by things like viral load)
is a virus that attachs cells that help the body fight infection
Human immunodeficiency Virus (HIV)
t/f: there is no cure for HIV but it is treatable with medicine
TRUE
medical condition where in immune system is too weak to fight infections
AIDS
stage of HIV: people have a large amount of HIV in their blood and are very contagious
acute
stage of HIV: many people have flu-like symptoms
acute
stage of HIV: asymptomatic HIV infection or clinical latency
chronic
stage of HIV: HIV is still active, and continues to reproduce
chronic
stage of HIV: not sick but can transmit
chronic
stage of HIV: most severe stage
AIDS
stage of HIV: high viral load and may easily transmit HIV
AIDS
stage of HIV: badly damaged immune systems, increasing opportunistic infections
AIDS
t/f: without HIV treatment, people with AIDS typically survive about __ years
3 years
HIV damages the immune system by killing __ cells
CD4 cells
without HIV medications, HIV advances to AIDS in about ___ years
10 years
4 principles of HIV transmission
exit -> survive -> sufficiency -> entry
if you engage in behaviors that may increase your chances of getting HIV, ask you health care provided if ___ is right for you
Pre-exposure prophylaxis (PrEP)
if you think youve been exposed to HIV within the last 3 days, ask a health care provided about ___ right away
Post exposure prophylaxic (PEP)
PEP can prevent HIV but it must be started within ___ hours
72 hours
t/f: if you have an undetectable viral load, you will not transmit HIV through sex
TRUE
total number of HIV infections rose by___% from 74 807 to 109 282, between 2019 and 2022.
31.54%
HIV/AIDS & ART Registry of the Philippines, December 2022. The number of new HIV infections increased by ___, from 12 778 to 14 970, in the same period.
14.64%
key populations of HIV (5)
- MSM
- transgender women
- sex workers
- trafficked women and girls
- people who inject drugs
Law for AIDS Control
RA 8504: Philippines AIDS control and prevention Act of 1998
AN ACT PROMULGATING POLICIES AND PRESCRIBING
MEASURES FOR THE PREVENTION AND CONTROL OF HIV/AIDS
IN THE PHILIPPINES, INSTITUTING ANATIONWIDE HIV/AIDS
INFORMATION AND EDUCATIONAL PROGRAM, ESTABLISHING A
COMPREHENSIVE HIV/AIDS MONITORING SYSTEM,
STRENGTHENING THE PHILIPPINE NATIONAL AIDS COUNCIL, AND FOR OTHER PURPOSES”
RA8504: philipines aids control and prevention act of 1998
in RA8504, ages allowed for voluntary HIV testing and counseling without parental consent
15-17
in RA8504, 6 year ___ serves as a roadmap for government, civil society, and private sector to prevent and control the spread of HIV in teh country
AIDS Medium Term Plam (AMTP)
caused by pathogenic microbes small enough to be discharged from an infected person via coughing, sneezing, laughing and close personal contact or aerosolization of the microbe.
airborne infections
discharged microbes remain suspended in the air on dust particles, respiratory and water droplets. Illness is caused when the microbe is inhaled or contacts mucus membranes or when secretions remaining on a surface are touched.
airborne infections
Coughs and sneezes
can spread droplets of saliva and mucus
droplet transmission
Tiny particles, possibly produced by talking, are suspended in the air for longer and travel further
Airborne transmissions
difference in size of droplet and airborne transmisison
droplet: more than 5 microns
airborne: less than 5 microns
can travel within and beyond 1 meter, float in air for hours, and inhaled
aerosols
can travel less than 1 meter, fall to ground in 5 seconds, cannot be inhaled
droplets
Influenza __ and ___ viruses circulate and cause seasonal epidemics of disease.
A and B
Influenza further classified into subtypes according to the combinations of the proteins on the surface of the virus and are the only type that have caused pandemics
Influenza A
not classified into subtypes but can be broken down into lineages. Influenza type ___ viruses belong to either Yamagata or Victoria lineage.
Influenza B
Detected less frequently and usually causes mild infections, thus does not present public health importance.
Influenza C
primarily affect cattle and are not known to infect or cause illness in people.
Influenza D
Influenza causes 290 000 to 650 000 respiratory deaths annually.Ninety- nine percent of deaths in children under __ years of age with influenza-related lower respiratory tract infections are in developing countries.
5
in influenza. Symptoms begin ___ days after infection and usually last around a week.
1 - 4 days
global outbreak of a new influenza A virus that is very different from current and recently circulating human seasonal influenza A viruses.
influenza pandemic
t/f: influenza A constantly changing, making it possible on very rare occasions for non- human influenza viruses to change in such a way that they can infect people easily and spread efficiently from person to person
TRUE
treatment of influenza includes use of antiviral agents within first __ days
2
___ should not be given to children when treating influenza
aspirin
antibiotics should be given only to complication of influenza like ___ and ___
pneumonia and otitis media
t/f: influenza is the only respiratory virus preventable by vaccination
TRUE
in 2017 - 2018, flu vaccine’s effectiveness was __%
40%
delay ni acceptance or refusal of vaccination despite availability of vaccination services
vaccine hesitancy
caused by a bacterium called Mycobacterium tuberculosis.
Tuberculosis
The bacteria usually attack the ___ but TB bacteria can attack any part of the body such as the kidney, spine, and brain.
lungs
t/f: everyone infected with TB becomes sick
false, not everyone
infection is acquired by ___ of M. tuberculosis in aerosols and dust (airborne transmission)
inhalation
the organisms of M. tuberculosis has ___ outer coat that can withstand drying and survive fro long periods in air and house dust
waxy outer coat
One cough of TB can release ____ droplet nuclei.
3,000
as few as __ MTB bacilli are necessary for human infection
5
the philippines is one of the ___ high burden countries for tuberculosis ackbnowledge by WHO
22
tuberculosis is the __ leading cause of mortality in the philippines
6th
t/f: tuberculosis is not curable
FALSE
the treatment for TB is a combination of __ - __ anti TB drugs
3-4
t/f: never should we prescribe a single drug for TB treatment, as this will worsen the patient’s condition
TRUE
Process of how drug resistant bacteria is created (4 steps)
- some bacteria will mutate and become antibiotic resistant strain
- when antibiotics are added, sensitive strains are killed but no effect on resistant strain
- antibiotic strain multiplies
- they transfer drug-resistance to other bacteria
Type of Drug Resistant TB: manifest resistance to both isoniazid and rifampicin
Multi-drug resistant
type of drug resistant TB: MDR strains that offer additional resistance to any flouroquinolone plut atleast either linezolid or bedaquiline
Extensively-Drug resistant TB
t/f: incorrect prescribing may cause drug resistance
TRUE
t/f: irregular supply of drug may cause drug resistance
TRUE
t/f: patient non adherance mayc ause drug resistance
TRUE
t/f: high grade quality of drugs may cause drug resistance
FALSE
drug resistant TB accounts for about ___ deaths from antimicrobial resistance
1 in 3
Loss to follow up among drug susceptible cases is___
low
But the loss to follow-up rate among drug resistant TB cases is ___
high
DOTS cure TB patients and it can produce cure rates as high as __% even in the poorest countries
95%
t/f: DOTS prevent new infections among children and adults
TRUE
t/f: DOTS cannot stop resistance to anti-TB drugs.
false, it can
t/f: DOTS is cost-effective.
TRUE
meaning of DOTS
Direct Observed Treatment Short-course