อ.ต้น สาริกาดำ | วิเคราะห์"หวยสาริกาดำ"ปลดหนี้ 15/ก.ค./2562
Yellow fever is a devastating disease spread by the bites of mosquitoes (and primates!) and is still prevalent in Africa, the Caribbean, and Central and South America. The yellow fever virus has probably existed in some form for thousands of years and is believed to have originated in Africa from other very similar viruses. Anyone planning a trip to the above-mentioned locations should take all recommended and necessary precautions-and at the very least receive a yellow fever vaccine. Or should they?
from: http://ezinearticles.com/?Yellow-Fever-Vaccine---Is-It-Worth-The-Risk?&id=6879603
