Rattanalak Jittungdee 6438165
1.Routine work of vector surveillance for malaria
I agree with Mr.Vanheuang’s opinion in Item 1 that surveys should be designed to collect data, for example, if we want to collect data on adult mosquitoes or larvae. We should choose that Anopheles spp. that are the main vectors for malaria. The life period and habitat of this species should be studied. To store information according to the data recording plan that has been set up. Based on the objective of the survey is to monitor malaria vectors.
– Long-term sampling is a survey that is often done to look at the increase or decrease of vectors in that area. Although it is a longer method to draw conclusions about how the disease fluctuates.
– Short-term sampling is a survey that often goes into areas where the infection has been reported. This may be surveyed to confirm the prevalence of vector vectors in that area and the rate of vector transmission. The results will lead to an assessment to control the situation in that area.
2. There is the outbreak of malaria in Thai-Myanmar border in Tak province. (2.5 scores) Please explain the detail in term of
– Objective: This part depends on what we want to do for what purpose.
To identify the source of malaria outbreaks in reported areas
To control the spread of disease
To study the spread of disease and its vectors
– Planning: The planning will be adjusted according to the objectives of the work. which we must have knowledge of the habitat and behavior of mosquitoes and choose a study method to suit the results we want
Identify the carrier mosquito species: We need to know the terrain of the outbreak area. Corresponding to the habitat of what types of mosquitoes we may encounter in the area. When is the time during which mosquito species are active? A cross-sectional study may be used to collect data.
Outbreak Control: We need to know what the outbreak area looks like. life of villagers How is the habitat How many outbreaks How are the number of vectors and the rate of the outbreak? If the infection is more children or adults, a retrospective study or cross-sectional study may be used.
Disease transmission rates and vectors: Know how many mosquito breeding areas the area has. What is the number of infected people? The number of mosquitoes that can be found in the survey such as using methods capture-recapture method to measure mosquito population prevalence will affect the spread of the disease as well. A retrospective study or a cross-sectional study may be used.
– Program activities: Determining what to do each day, for example, in the morning to collect samples or data in Area A, and in the afternoon to collect samples or data in Area B, etc.
– Methods: Methods used to collect data or collect samples. which should have a form to record information The equipment used to collect samples corresponds to the survey area. including methods for preserving samples for experimentation or inspection
The use of BG trapping to trap adult mosquitoes or the use of devices used to catch larvae in water sources that may have Anopheles mosquitoes. Follow different areas of the survey area and map where traps are placed. and save the data
Preservation of collected samples which we want the example to be complete. for effective monitoring such as Collection in tubes containing silica beads, for example, and labeled with type of sample, date of collection, area of collection. including sample collectors
Transport of samples that can be stored in a sealed and strong container to prevent damage or loss of samples
Laboratory Examination: Morphological Classification, Molecular species identification including the detection of malaria in mosquito samples obtained
– Analysis: Bringing the data obtained from local surveys and laboratory results to be recorded in a digital system such as Excel, then analyzed and summarized.
– Reports: describe the results of the survey. Discuss how well the results meet the objectives. result meet the purpose or not What needs to be improved in the next study?