COVID-19(595) Result(454) objective(454) pandemic(294) public health(283) Health(247) COVID-19 pandemic(232) SARS-CoV-2(193) Surveillance(156) information(154) conducted(149) country(141) Analysis(140) Care(138) outbreak(138) reported(132) coronavirus(119) identify(113) 95% CI(113) Spread(111) Factor(109) Infection(107) coronavirus disease(107) association(105) Patient(104) media(103) Transmission(103) age(102) analyzed(99) risk(99)