yesterday, i came about this page (http://ph.news.yahoo.com/gma/20100130/tph-pinoy-prof-in-us-develops-anti-malar-ac8c905.html). It's about a Filipino doctor ( Dr. Rhoel Dinglasan) from John Hopkin's hosp
ital inventing a malarial vaccine. Target of the vaccine is to prevent the development of the malaria parasite in mosquitoes. The way i understand it, when the mosquito sucks a vaccinated person, malaria would be inhibited inside the mosquito.
questions: Does that mean the malaria would not be transmitted if a vaccinated person gets bitten by an infected mosquito? yes. Would the infected mosquito who sucked the vaccinated blood be unable to transmit malaria again? it seems so, though do correct me if im wrong. is it available now? no. clinical studies re just being planned right now. how often should one take the vaccine: ang kulit! hindi pa nga available.
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Parasites vs. vaccines. parasites are problematic because they are paraasites: they suck blood from you,they squat in your abdomen, they mulitply endlessly causing obstruction on your organs, or they destroy your skin,making you scray-looking. Viral vaccine usually work by helping your body recognize a virus and create antibodies to fight it off. a person receiving a vaccine is given either an attenuated virus (less potent/less strong than the actual virus) or a killed virus (coat only, no infectious part).
The parasitic vaccine Dr. Dinglasan created is a bit confusing to me. According to the article, the vaccine would target the mosquito and lock the parasites inside. the article also said that the vaccine they created contains an antigen that simulated the presence of malaria --> antibodies are then created by our bodies to fight future introduction of the parasite. now there's the part where i got lost. Yous see, if i were infected by malaria, it is still possible to get reinfected. This means that immunity from malaria is hard to come by. that alone could negate the article. maybe the writer didnt understand what the doctor said.
Immunity does not happen frequently, though some say that it may happen in some people lacking proteins called Duffy antigens (receptor sites for the parasite) in their blood (red blood cell is where malaria enters to multiply)--> this means people lacking this proteins would NOT have plasmodium enter its RBC. (plasmodium is the causative agent of malarial infection.) It has also been said that immunity may happen in some people living in malaria-endemic places. But it would happen only after constant and repeated reinfection!
Also, one should know that previous researches on parasitic vaccines had severe human side effects! why? because their structure is more complex than bacteria (not seen by the naked eye- only its manifestations, it is seen through a light microscope) or viruses (viruses are not seen though a light microscope)
conclusion: so if that parasitic vaccine by Dr. Dinglasan works,well, it will be awesome.
Actually, i found this article while stuying for my microbiology practicals and theo exam. lol. delaying ba?
self handicapping: i wasn't able to study kasi i found a great article on....