The standard protective dose is almost 14,000 units, but even 500 units raises antibody levels sufficiently to do the job.

The second "toxic" phase begins one or two days later, as the virus attacks the internal organs such as the kidneys and liver. Victims become jaundiced and yellowed, hence the name yellow fever.

Dengue Virus Genome and Structure The dengue virus genome ... Chakraborty, T. Dengue Fever and Other Hemorrhagic Viruses. New York: Chelsea House, 2008. Halstead, S. B. Dengue hemorrhagic fever ...

March 13th marks five years since an emergency declaration was issued in 2020 for the unfolding COVID-19 outbreak. But it's far from the only deadly virus to impact the Port City over the years.