<prompt> Which of the following is not true about dengue shock syndrome?Susceptibility to dengue shock syndrome drops considerably after 12 years of ageWell-nourished child is protected from the manifestationSerotype 1 infection followed by serotype 2 seems to be more dangerous than serotype 4 followed by serotype 2Serotype 2 infection has more chances of developing dengue shock syndrome compared to other serotypes  <response>: Ans. is b i.e., Well-nourished child is protected from the manifestation The induction of vascular permeability and shock in dengue patients i. e. development of dengue shock syndrome depends on multiple factors, including the following:i Presence of enhancing and nonneutralizing antibodies-- Transplacental maternal antibody may be present in infants 9 months old, or antibody elicited by previous heterologous dengue infection may be present in older individuals. T cell reactivity is also intimately involved.ii Age--Susceptibility to DHFDSS drops considerably after 12 years of age.iii Sex--Females are more often affected than males.iv Race--Whites are more often affected than blacks.v Nutritional status--Malnutrition is protective.vi Sequence of infection--F or example, serotype 1 followed by serotype 2 seems to be more dangerous than serotype 4 followed by serotype 2.vii Infecting serotype--Type 2 is apparently more dangerous than other serotypes.Note: There is considerable variation among strains of a given serotype, with Southeast Asian serotype 2 strains having more potential to cause DHFDSS than others. 