Table of Contents
What is extrinsic incubation period?
The extrinsic incubation period (EIP) is an important epidemiological measure and is defined as the time it takes for a virus to disseminate through a mosquito from the midgut where virus enters the mosquito after blood feeding to the salivary glands where it is then expectorated upon subsequent feeding.
What is Aedes index?
A novel entomological index, Aedes aegypti Breeding Percentage, reveals the geographical spread of the dengue vector in Singapore and serves as a spatial risk indicator for dengue.
How do you calculate pupal index?
Pupae-per-person index (PPI), calculated as the total number of pupae found, divided by the total population of the inspected households. Household index (HI), calculated as the number of households with any larvae or pupae, divided by the total number of inspected households, multiplied by 100.
Is spread by aedes aegypti?
Aedes aegypti is known to transmit dengue virus, yellow fever virus, chikungunya virus, and Zika virus. It is suggested to be a potential vector of Venezuelan Equine Encephalitis virus [34] and vector competency studies have shown Ae. aegypti is capable of transmitting West Nile virus.
What is the normal range of dengue fever?
Reference Range: Dengue Fever Virus Antibody, IgG 1.64 IV or less: Negative – No significant level of detectable dengue fever virus IgG antibody. 1.65-2.84 IV: Equivocal – Questionable presence of antibodies. Repeat testing in 10-14 days may be helpful.
How do you find the index of a vector?
The vector index is calculated by determining the average number of infected mosquitoes collected per trap in an area. Emergency spraying may be recommended when the vector index is at 0.75 or higher.
How do you pronounce Aedes aegypti?
However, Aedes is differently pronounced as “A-e-des” or “Edes”, and the initial diphthong of aegypti is pronounced as “a-e” or “e” (Rigolon 2015. 2015.
Which one of the following disease is caused by Aedes aegypti?
Dengue is the most prevalent viral infection transmitted by Aedes mosquitoes. More than 3.9 billion people in over 129 countries are at risk of contracting dengue, with an estimated 96 million symptomatic cases and an estimated 40,000 deaths every year.
What is the difference between Aedes aegypti and albopictus?
Aedes aegypti is known to transmit dengue virus, yellow fever virus, chikungunya virus, and Zika virus. It is suggested to be a potential vector of Venezuelan Equine Encephalitis virus, and is capable of transmitting West Nile virus. Aedes albopictus transmits dengue virus and chikungunya virus.