Many are struggling to source their second dose of the Covid-19 jab in one of the worst-hit countries.
This information is regularly updated but may not reflect the latest totals for each country. Total vaccinations refers to the number of doses given, not the number of people vaccinated. It is possible to have more than 100 doses per 100 population as some vaccines require two doses per person.Unlike some other countries, Brazil chose not to hold back supplies for second doses. Its vaccination campaign has mostly relied on CoronaVac shots, made locally using inputs from China's Sinovac.
In early July, Simone Spadari Da Costa Moura arrived at a clinic in São Paulo, ready for her second jab. But she, like many others, was turned away as CoronaVac doses ran out. While a longer interval between doses appears to boost the efficacy of vaccines like Pfizer and AstraZeneca, research into the impact of delaying a second CoronaVac shot is still lacking. Some experts fear a longer wait could even hinder the effects of the Chinese vaccine, which already may be less effective at preventing serious cases of Covid-19.
"There needs to be an easy way for people to get vaccinated," Dr Salvador said. "Without it, some will inevitably give up on getting the second dose. And, unless a large majority of people are fully vaccinated, we will continue to be a long way off from controlling the pandemic."
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