The latest news in the race for an effective COVID-19 vaccine is certainly encouraging. Pharmaceutical company Pfizer has developed a vaccine that has proven 90% effective at preventing the SARS-CoV-2 disease during late-stage trials, indicating that the US is closing in on being able to provide a safe vaccine for the virus that has caused a global health crisis and caused over 200,000 deaths in the US alone.
More from MamásLatinas: Everything there is to know about coronavirus vaccines so far
Still, a COVID-19 vaccine is not likely to be widely available until at least the spring. Although Pfizer's results are promising, there are still many questions to be answered about the virus itself and the vaccine. Here's what you need to know about the vaccine and why we need more information before it's distributed.