vaccines are the cheapest and most effective health measure for protecting europeans from infectious diseases but it also important for to reach developing countries so as to contribute
Vaccines are the cheapest and most effective public health measure for protecting Europeans from infectious diseases, but it is also important for healthcare to reach developing countries, so as to contribute to increasing life expectancy and to combating poverty.
Vaccines are the cheapest and most effective health measure for protecting Europeans from infectious diseases, but it also important for to reach developing countries, so as to contribute to increasing life expectancy and combating