London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Holborn 1937
[Report of the Medical Officer of Health for Holborn Borough]
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| Nature of premises where sample obtained | Grade | No. of bacteria per c.c. | Minimal amount showing coliform bacteria | Phosphatase test | Methylene Blue test | Evidence of Tuberculous Infection | Sample Letter |
|---|---|---|---|---|---|---|---|
| School | Pasteurised | 16,000 | ... | Negative | ... | ... | A |
| School | Pasteurised | ... | ... | ... | ... | None | B |
| School | Pasteurised | 80,000 | ... | Slight positive | ... | ... | C |
| School | Pasteurised | ... | ... | Slight positive | ... | None | D |
| Street | Ungraded | 1,000,000 | 0.00001 c.c. | ... | ... | ... | E |
| Street | Pasteurised | 3,000 | Absent in 1 c.c. | Negative | ... | ... | F |
| Street | Ungraded | 24,000 | 0000.1 c.c. | ... | ... | ... | G |
| Street | Pasteurised | 40,000 | Present in 1 c.c. | Positive | ... | ... | H |
| Street | Pasteurised | 100,000 | Absent in 1 c.c. | ... | ... | ... | I |
| Dairy | Ungraded | 20,000 | ... | ... | ... | ... | L |
| Milk Bar | Ungraded | 120,000 | ... | ... | ... | ... | R |
| Street | Ungraded | ... | Present in 3 tubes 0.01 c.c. negative | ... | ... | ... | S |
| Street | Ungraded | ... | Present in 1 tube 0.01 c.c. negative | ... | ... | ... | V |
| Street | Ungraded | 45,000 | 0.1 c.c. | ... | ... | None | W |
| Milk Bar | Ungraded | 1,000,000† | 0.00001 c.c. | ... | ... | ... | X |
| Dairy | Pasteurised | 300,000 | Present in 1 c.c. | Positive to slight deg. | ... | ... | Z |
| Dairy | Pasteurised | 40,000 | Present in 1 c.c. | Negative | ... | ... | AA |
| Milk Bar | Ungraded | 20,000 | 1 c.c. | ... | ... | ... | BB |
| Milk Bar | Ungraded | ... | Present in 3 tubes 1 c.c. | ... | 3½ hours | ... | DD |
| Street | Ungraded | 140,000 | 0.01 c.c. | ... | ... | ... | HH |
| Street | Ungraded | 300,000 | 0.00001 c.c. | ... | ... | ... | II |
| Milk Bar | Ungraded | 7,000 | 1 c.c. | ... | ... | ... | JJ |
| Milk Bar | Ungraded | 20,000 | 0.01 c.c. | ... | ... | ... | KK |
| Milk Bar | Ungraded | 19,000 | 0.01 c.c. | ... | ... | ... | OO |
| Milk Bar | Ungraded | 11,000 | 0.01 c.c. | ... | ... | ... | PP |
| Milk Bar | Ungraded | 12,000 | 0 01 c.c. | ... | ... | ... | |
| Milk Bar | Ungraded | 8,000 | 1 c.c. | ... | ... | ... | RR |
| Dairy | Pasteurised | 41,000 | 1 c.c. | Slightly positive | ... | ... | SS |
| Dairy | Pasteurised | 82,000 | Present in 1 c.c. | Negative | ... | None | TT |
| Street | Pasteurised | 68,000 | Absent in 1 c.c. | Negative | ... | None | UU |
| Dairy | Pasteurised | 98.000 | Present in 1 c.c. | Negative | ... | ... | VV |