Cuba has vowed to defend itself against any “terrorist and mercenary aggression”, a day after border guards said they had killed four exiles on a Florida-registered speedboat that opened fire on a patrol.
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It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.
Collins was also a parent to two young children. The fact that she was a working wife and mother was frequently brought up in press conferences at the time, with some journalists seemingly astonished that she could be both.