-
What is the likelihood of an epidemic of Filariasis?
Because of low infectivity and long incubation period, epidemics of filariasis are almost unlikely.
-
What are the steps to take control of patients, contacts, and the immediate environment?
- 1) report to local health authority
- 2) isolation
- 3) concurrent disinfection
- 4) quarantine
- 5) immunization
- 6) investigation of contacts
- 7) specific treatment
-
What are the preventative measures for Filariasis?
- 1) educate
- 2) identify vectors
- 3) long term vector control
- 4) mass treatment with diethylcarbamazine citrate (DEC)
-
B. timori is transmitted by?
An. barbirostris
-
In the female mosquito, ingested microfilariae?
Penetrate the stomach wall and develop in the thoracic muscles into elongated, infective filariform larvae
-
What is the susceptibility to infection of Filariasis universally?
It is propable.
-
What is the incubation period of filariasis?
microfilariae may not appear in the blood until 3-6 months in B. malayi or 6-12 months in W. bancrofti
-
What is the period of communicability in filariasis?
microfilaraemia may persist for 5-10 years or longer after initial infection.
-
Infectious agents of filariasis?
Wuchereria bancrofti, Brugia malayi, and B. timori; long threadlike worms.
-
Which is the most common prevalent of the 3 parasites responsible for 90% of the lymphatic filariases?
W. bancrofti
-
B. timori infections have been described on?
Timor and on southeastern islands of Indonesia.
-
Clinical manifestations of B timori are comparable to those seen in?
B. malayi infections
-
What are the reservoirs for filariasis?
Humans with microfilariae in the blood for W. bancrofti, periodic B. malayi and B. timori.
-
The mode of transmission of filariasis?
Bite of a mosquito harbouring infective larvae.
-
The three kinds of filariasis are?
Filariasis due to Brugia Timori, Brugia Malayi, or Wuchereria Bancrofti.
-
Filariasis?
the lymphatic-dwelling filariae we have previously listed.
-
W. Bancrofti usually resides in?
The lymphatics in infected people.
-
The nocturnally periodic form of B Malayi occurs when?
living in open rice growing areas throughout much of Southeastern Asia.
-
The subperiodic form of B. Malayi infects?
Humans, monkeys, and carnivores in the forests of Malaysia and Indonesia.
-
Preventative measures of Trypanosomiasis are?
- 1) educate
- 2) attack vectors
- 3) construct of repair living areas
- 4)bednets
- 5) screen blood and organ donors
-
What are the controls of patients, contacts, and the immediate environment of Trypanosomiasis?
- 1) Report
- 2) isolation
- 3) disinfect
- 4) quarantine
- 5) immunization
- 6) investigation of contacts and sources of infection.
- 7) specific treatment.
-
What is the incubation period of Trypanosomiasis?
About 5-14 days after bite of insect vector, 30-40 days if infected through blood transfusion.
-
What is the period of communicability of Trypanosomiasis?
The vector becomes infective 10-30 days after biting an infected host
-
What ages are susceptible to Trypanosomiasis?
All ages.
-
Who can be reservoirs for Trypanosomiasis?
Humans and over 150 domestic and wild mammals species
-
Parasitemia is most intense during?
febrile episodes early in the course of infection.
-
An inflammatory response at the site of infection (chagoma) may last up to?
8 weeks
-
Trypanosomiasis: In 20-30% of infections?
Irreversible chronic manifestations generally appear later in life.
-
Trypanosomiasis?
The acute disease, with variable fever, lymphadenopathy, malaise, and hepatosplenomegaly generally occurs in children.
-
Trypanosomiasis is confined to the?
Western hemisphere, also in rural Mexico and central and south America
-
Reactivated infection in what kind of patients may cause meningoencephalitis?
AIDS.
-
Trypanosomiasis: To 5 reported acute vector borne human infections acquired within the USA, how many were acquired by blood transfusions?
3.
-
What is the mode of transmission for Trypanosomiasis?
Infected vectors, ie. bloodsucking species of Reduviidae (cone nosed bugs or kissing bugs).
-
No clinical manifestations of what have been noted?
T. Rangeli
-
T cruzi flagellates can share reservoir hosts with?
T. Rangeli
-
Trypanosoma Rangeli occurs in foci of endemic?
Chagas disease extending from Central America to Columbia and Venezuela.
|
|
